diff --git a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/BinaryInterface.kt b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/BinaryInterface.kt
index d7fc4cc2edf..df10e3663ee 100644
--- a/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/BinaryInterface.kt
+++ b/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/llvm/BinaryInterface.kt
@@ -158,7 +158,15 @@ internal val FunctionDescriptor.functionName: String
     get() {
         with(this.original) { // basic support for generics
             this.getObjCMethodInfo()?.let {
-                return "objc:${it.selector}"
+                return buildString {
+                    if (extensionReceiverParameter != null) {
+                        append(TypeUtils.getClassDescriptor(extensionReceiverParameter!!.type)!!.name)
+                        append(".")
+                    }
+
+                    append("objc:")
+                    append(it.selector)
+                }
             }
 
             return "$name$signature"