diff --git a/openapi/src/com/intellij/psi/GenericsUtil.java b/openapi/src/com/intellij/psi/GenericsUtil.java
index 9daaf8c9cf73..51df2548556a 100644
--- a/openapi/src/com/intellij/psi/GenericsUtil.java
+++ b/openapi/src/com/intellij/psi/GenericsUtil.java
@@ -159,4 +159,8 @@ public class GenericsUtil {
 
     return true;
   }
+
+  public static boolean isFromExternalTypeLanguage (PsiType type) {
+    return type.getInternalCanonicalText().equals(type.getCanonicalText());
+  }
 }
diff --git a/source/com/intellij/codeInsight/daemon/impl/quickfix/VariableTypeFix.java b/source/com/intellij/codeInsight/daemon/impl/quickfix/VariableTypeFix.java
index 3e0407cd0897..3b8b05f6bf0e 100644
--- a/source/com/intellij/codeInsight/daemon/impl/quickfix/VariableTypeFix.java
+++ b/source/com/intellij/codeInsight/daemon/impl/quickfix/VariableTypeFix.java
@@ -8,6 +8,7 @@ import com.intellij.openapi.project.Project;
 import com.intellij.psi.PsiFile;
 import com.intellij.psi.PsiType;
 import com.intellij.psi.PsiVariable;
+import com.intellij.psi.GenericsUtil;
 import com.intellij.psi.codeStyle.CodeStyleManager;
 import com.intellij.psi.util.TypeConversionUtil;
 import com.intellij.util.IncorrectOperationException;
@@ -57,7 +58,7 @@ public class VariableTypeFix implements IntentionAction {
         && myReturnType.isValid()
         && !TypeConversionUtil.isNullType(myReturnType)
         && !TypeConversionUtil.isVoidType(myReturnType)
-        ;
+        && GenericsUtil.isFromExternalTypeLanguage(myReturnType);
   }
 
   public void invoke(Project project, Editor editor, PsiFile file) {