diff --git a/js/js.translator/src/org/jetbrains/kotlin/js/translate/expression/FunctionTranslator.java b/js/js.translator/src/org/jetbrains/kotlin/js/translate/expression/FunctionTranslator.java
index 905f5a5ff8b..b001a0b7cde 100644
--- a/js/js.translator/src/org/jetbrains/kotlin/js/translate/expression/FunctionTranslator.java
+++ b/js/js.translator/src/org/jetbrains/kotlin/js/translate/expression/FunctionTranslator.java
@@ -121,10 +121,6 @@ public final class FunctionTranslator extends AbstractTranslator {
 
     @NotNull
     private List<JsParameter> translateParameters() {
-        if (extensionFunctionReceiverName == null && descriptor.getValueParameters().isEmpty()) {
-            return Collections.emptyList();
-        }
-
         List<JsParameter> jsParameters = new SmartList<JsParameter>();
 
         for (TypeParameterDescriptor type : descriptor.getTypeParameters()) {
@@ -135,6 +131,10 @@ public final class FunctionTranslator extends AbstractTranslator {
             }
         }
 
+        if (extensionFunctionReceiverName == null && descriptor.getValueParameters().isEmpty()) {
+            return jsParameters;
+        }
+
         mayBeAddThisParameterForExtensionFunction(jsParameters);
         addParameters(jsParameters, descriptor, context());
         return jsParameters;