diff --git a/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt b/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt
index 77bc986ab39..c4a05082d72 100644
--- a/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt
+++ b/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt
@@ -161,9 +161,10 @@ class K2JsIrCompiler : CLICompiler<K2JSCompilerArguments>() {
 
         val outputFile = File(outputFilePath)
 
+        val moduleName = arguments.irModuleName ?: FileUtil.getNameWithoutExtension(outputFile)
         configurationJs.put(
             CommonConfigurationKeys.MODULE_NAME,
-            arguments.irModuleName ?: FileUtil.getNameWithoutExtension(outputFile)
+            moduleName
         )
 
         // TODO: in this method at least 3 different compiler configurations are used (original, env.configuration, jsConfig.configuration)
@@ -206,7 +207,9 @@ class K2JsIrCompiler : CLICompiler<K2JSCompilerArguments>() {
                 irFactory = PersistentIrFactory(), // TODO IrFactoryImpl?
                 outputKlibPath = outputFile.path,
                 nopack = arguments.irProduceKlibDir,
-                jsOutputName = FileUtil.getNameWithoutExtension(outputFile),
+                jsOutputName = moduleName
+                    .replace(":", "-")
+                    .replace(".", "-"),
             )
         }