diff --git a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/MultiModuleSupport.kt b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/MultiModuleSupport.kt
index 7a2702fc8fa..c5e0653a37f 100644
--- a/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/MultiModuleSupport.kt
+++ b/compiler/ir/backend.js/src/org/jetbrains/kotlin/ir/backend/js/transformers/irToJs/MultiModuleSupport.kt
@@ -123,5 +123,5 @@ val IrModuleFragment.safeName: String
         if (result.startsWith('<')) result = result.substring(1)
         if (result.endsWith('>')) result = result.substring(0, result.length - 1)
 
-        return sanitizeName("kotlin_$result")
+        return sanitizeName("kotlin_$result", false)
     }