diff --git a/kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt b/kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt
index e88646e4f57..3d637894b9f 100644
--- a/kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt
+++ b/kotlin-native/backend.native/cli.bc/src/org/jetbrains/kotlin/cli/bc/K2Native.kt
@@ -140,6 +140,10 @@ class K2Native : CLICompiler<K2NativeCompilerArguments>() {
                 put(LINKER_ARGS, arguments.linkerArguments.toNonNullList() +
                         arguments.singleLinkerArguments.toNonNullList())
                 arguments.moduleName?.let{ put(MODULE_NAME, it) }
+
+                // TODO: allow overriding the prefix directly.
+                arguments.moduleName?.let { put(FULL_EXPORTED_NAME_PREFIX, it) }
+
                 arguments.target?.let{ put(TARGET, it) }
 
                 put(INCLUDED_BINARY_FILES,
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/CAdapterGenerator.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/CAdapterGenerator.kt
index b157e15b504..ea479cd4ede 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/CAdapterGenerator.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/CAdapterGenerator.kt
@@ -516,7 +516,7 @@ private fun ModuleDescriptor.getPackageFragments(): List<PackageFragmentDescript
 internal class CAdapterGenerator(val context: Context) : DeclarationDescriptorVisitor<Boolean, Void?> {
 
     private val scopes = mutableListOf<ExportedElementScope>()
-    internal val prefix = context.config.moduleId
+    internal val prefix = context.config.fullExportedNamePrefix
     private lateinit var outputStreamWriter: PrintWriter
     private val paramNamesRecorded = mutableMapOf<String, Int>()
 
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanCompilerFrontendServices.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanCompilerFrontendServices.kt
index 535eccb846e..db0e679a51a 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanCompilerFrontendServices.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanCompilerFrontendServices.kt
@@ -28,7 +28,7 @@ internal fun StorageComponentContainer.initContainer(config: KonanConfig) {
 
         useInstance(object : ObjCExportLazy.Configuration {
             override val frameworkName: String
-                get() = config.moduleId
+                get() = config.fullExportedNamePrefix
 
             override fun isIncluded(moduleInfo: ModuleInfo): Boolean = true
 
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfig.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfig.kt
index 943c5f04b7c..e3e0ea96258 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfig.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfig.kt
@@ -106,8 +106,14 @@ class KonanConfig(val project: Project, val configuration: CompilerConfiguration
 
     val outputFile get() = outputFiles.mainFile
 
+    private val implicitModuleName: String
+        get() = File(outputFiles.outputName).name
+
+    val fullExportedNamePrefix: String
+        get() = configuration.get(KonanConfigKeys.FULL_EXPORTED_NAME_PREFIX) ?: implicitModuleName
+
     val moduleId: String
-        get() = configuration.get(KonanConfigKeys.MODULE_NAME) ?: File(outputFiles.outputName).name
+        get() = configuration.get(KonanConfigKeys.MODULE_NAME) ?: implicitModuleName
 
     val shortModuleName: String?
         get() = configuration.get(KonanConfigKeys.SHORT_MODULE_NAME)
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfigurationKeys.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfigurationKeys.kt
index 2b2f512109a..52e025e704e 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfigurationKeys.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/KonanConfigurationKeys.kt
@@ -32,6 +32,8 @@ class KonanConfigKeys {
                 = CompilerConfigurationKey.create("fully qualified main() name")
         val EXPORTED_LIBRARIES: CompilerConfigurationKey<List<String>>
                 = CompilerConfigurationKey.create<List<String>>("libraries included into produced framework API")
+        val FULL_EXPORTED_NAME_PREFIX: CompilerConfigurationKey<String?>
+                = CompilerConfigurationKey.create("prefix used when exporting Kotlin names to other languages")
         val LIBRARIES_TO_CACHE: CompilerConfigurationKey<List<String>>
                 = CompilerConfigurationKey.create<List<String>>("paths to libraries that to be compiled to cache")
         val LIBRARY_TO_ADD_TO_CACHE: CompilerConfigurationKey<String?>
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/objcexport/ObjCExport.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/objcexport/ObjCExport.kt
index 68e228e80ad..5b33cd45ee2 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/objcexport/ObjCExport.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/objcexport/ObjCExport.kt
@@ -36,6 +36,7 @@ internal class ObjCExportedInterface(
 
 internal class ObjCExport(val context: Context, symbolTable: SymbolTable) {
     private val target get() = context.config.target
+    private val topLevelNamePrefix get() = context.objCExportTopLevelNamePrefix
 
     private val exportedInterface = produceInterface()
     private val codeSpec = exportedInterface?.createCodeSpec(symbolTable)
@@ -59,7 +60,7 @@ internal class ObjCExport(val context: Context, symbolTable: SymbolTable) {
                     moduleDescriptors.toSet(),
                     context.moduleDescriptor.builtIns,
                     mapper,
-                    context.moduleDescriptor.namePrefix,
+                    topLevelNamePrefix,
                     local = false,
                     objcGenerics = objcGenerics
             )
@@ -87,7 +88,7 @@ internal class ObjCExport(val context: Context, symbolTable: SymbolTable) {
                 setOf(codegen.context.moduleDescriptor),
                 context.moduleDescriptor.builtIns,
                 mapper,
-                context.moduleDescriptor.namePrefix,
+                topLevelNamePrefix,
                 local = false
         )
 
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/objcexport/ObjCExportNamer.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/objcexport/ObjCExportNamer.kt
index fe20e192a6e..9760baeb16a 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/objcexport/ObjCExportNamer.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/objcexport/ObjCExportNamer.kt
@@ -6,6 +6,7 @@
 package org.jetbrains.kotlin.backend.konan.objcexport
 
 import org.jetbrains.kotlin.backend.common.serialization.findSourceFile
+import org.jetbrains.kotlin.backend.konan.Context
 import org.jetbrains.kotlin.backend.konan.cKeywords
 import org.jetbrains.kotlin.backend.konan.descriptors.isArray
 import org.jetbrains.kotlin.backend.konan.descriptors.isInterface
@@ -78,13 +79,13 @@ interface ObjCExportNamer {
 }
 
 fun createNamer(moduleDescriptor: ModuleDescriptor,
-                topLevelNamePrefix: String = moduleDescriptor.namePrefix): ObjCExportNamer =
+                topLevelNamePrefix: String): ObjCExportNamer =
         createNamer(moduleDescriptor, emptyList(), topLevelNamePrefix)
 
 fun createNamer(
         moduleDescriptor: ModuleDescriptor,
         exportedDependencies: List<ModuleDescriptor>,
-        topLevelNamePrefix: String = moduleDescriptor.namePrefix
+        topLevelNamePrefix: String
 ): ObjCExportNamer = ObjCExportNamerImpl(
         (exportedDependencies + moduleDescriptor).toSet(),
         moduleDescriptor.builtIns,
@@ -270,7 +271,7 @@ internal class ObjCExportNamerImpl(
                     get() = topLevelNamePrefix
 
                 override fun getAdditionalPrefix(module: ModuleDescriptor): String? =
-                        if (module in moduleDescriptors) null else module.namePrefix
+                        if (module in moduleDescriptors) null else module.objCExportAdditionalNamePrefix
 
                 override val objcGenerics: Boolean
                     get() = objcGenerics
@@ -900,11 +901,13 @@ private fun ObjCExportMapper.canHaveSameName(first: PropertyDescriptor, second:
     return bridgePropertyType(first) == bridgePropertyType(second)
 }
 
-internal val ModuleDescriptor.namePrefix: String get() {
+internal val ModuleDescriptor.objCExportAdditionalNamePrefix: String get() {
     if (this.isNativeStdlib()) return "Kotlin"
 
     val fullPrefix = when(val module = this.klibModuleOrigin) {
-        CurrentKlibModuleOrigin, SyntheticModulesOrigin ->
+        CurrentKlibModuleOrigin ->
+            error("expected deserialized module, got $this (origin = $module)")
+        SyntheticModulesOrigin ->
             this.name.asString().let { it.substring(1, it.lastIndex) }
         is DeserializedKlibModuleOrigin ->
             module.library.let { it.shortName ?: it.uniqueName }
@@ -913,6 +916,9 @@ internal val ModuleDescriptor.namePrefix: String get() {
     return abbreviate(fullPrefix)
 }
 
+internal val Context.objCExportTopLevelNamePrefix: String
+    get() = abbreviate(config.fullExportedNamePrefix)
+
 fun abbreviate(name: String): String {
     val normalizedName = name
             .replaceFirstChar(Char::uppercaseChar)