diff --git a/java/java-impl/src/com/intellij/refactoring/introduceparameterobject/IntroduceParameterObjectDialog.java b/java/java-impl/src/com/intellij/refactoring/introduceparameterobject/IntroduceParameterObjectDialog.java
index 86b946aa7b66..4260c0532dd2 100644
--- a/java/java-impl/src/com/intellij/refactoring/introduceparameterobject/IntroduceParameterObjectDialog.java
+++ b/java/java-impl/src/com/intellij/refactoring/introduceparameterobject/IntroduceParameterObjectDialog.java
@@ -107,6 +107,9 @@ public class IntroduceParameterObjectDialog extends RefactoringDialog {
     buttonGroup.add(createNewClassButton);
     buttonGroup.add(myCreateInnerClassRadioButton);
     createNewClassButton.setSelected(true);
+    if (containingClass != null && containingClass.getQualifiedName() == null) {
+      myCreateInnerClassRadioButton.setEnabled(false);
+    }
     init();
 
     final ActionListener listener = new ActionListener() {