diff --git a/js/js.translator/src/org/jetbrains/kotlin/js/translate/initializer/ClassInitializerTranslator.java b/js/js.translator/src/org/jetbrains/kotlin/js/translate/initializer/ClassInitializerTranslator.java
index 761e929c5eb..914b47fd2a6 100644
--- a/js/js.translator/src/org/jetbrains/kotlin/js/translate/initializer/ClassInitializerTranslator.java
+++ b/js/js.translator/src/org/jetbrains/kotlin/js/translate/initializer/ClassInitializerTranslator.java
@@ -235,7 +235,7 @@ public final class ClassInitializerTranslator extends AbstractTranslator {
                     }
                 }
 
-                if (superDescriptor.isPrimary()) {
+                if (superDescriptor.isPrimary() || superDescriptor.getConstructedClass().isExternal()) {
                     addCallToSuperMethod(arguments, initializer, superCall.getCall().getCallElement());
                 }
                 else {