diff --git a/idea/ide-common/src/org/jetbrains/kotlin/resolve/lazy/ElementResolver.java b/idea/ide-common/src/org/jetbrains/kotlin/resolve/lazy/ElementResolver.java
index a76927eed18..1007e9333fa 100644
--- a/idea/ide-common/src/org/jetbrains/kotlin/resolve/lazy/ElementResolver.java
+++ b/idea/ide-common/src/org/jetbrains/kotlin/resolve/lazy/ElementResolver.java
@@ -184,7 +184,9 @@ public abstract class ElementResolver {
             packageRefAdditionalResolve(resolveSession, trace, resolveElement);
         }
         else {
-            assert false : "Invalid type of the topmost parent";
+            assert false : String.format("Invalid type of the topmost parent: %s\n%s",
+                                         resolveElement.toString(),
+                                         JetPsiUtil.getElementTextWithContext(resolveElement));
         }
 
         new JetFlowInformationProvider(resolveElement, trace).checkDeclaration();