diff --git a/platform/lang-impl/src/com/intellij/refactoring/extractSuperclass/ExtractSuperBaseDialog.java b/platform/lang-impl/src/com/intellij/refactoring/extractSuperclass/ExtractSuperBaseDialog.java
index aca732f738ac..3344a574e4a8 100644
--- a/platform/lang-impl/src/com/intellij/refactoring/extractSuperclass/ExtractSuperBaseDialog.java
+++ b/platform/lang-impl/src/com/intellij/refactoring/extractSuperclass/ExtractSuperBaseDialog.java
@@ -128,6 +128,7 @@ public abstract class ExtractSuperBaseDialog<ClassType extends PsiElement, Membe
     final ButtonGroup buttonGroup = new ButtonGroup();
     buttonGroup.add(myRbExtractSuperclass);
     buttonGroup.add(myRbExtractSubclass);
+    customizeRadiobuttons(box, buttonGroup);
     myRbExtractSuperclass.setSelected(true);
 
     ItemListener listener = new ItemListener() {
@@ -140,6 +141,9 @@ public abstract class ExtractSuperBaseDialog<ClassType extends PsiElement, Membe
     return box;
   }
 
+  protected void customizeRadiobuttons(Box box, ButtonGroup buttonGroup) {
+  }
+
   protected JComponent createNorthPanel() {
       Box box = Box.createVerticalBox();