diff --git a/platform/lang-impl/src/com/intellij/formatting/contextConfiguration/CodeFragmentCodeStyleSettingsPanel.java b/platform/lang-impl/src/com/intellij/formatting/contextConfiguration/CodeFragmentCodeStyleSettingsPanel.java
index 9c40b617a34b..2955ba9a3db0 100644
--- a/platform/lang-impl/src/com/intellij/formatting/contextConfiguration/CodeFragmentCodeStyleSettingsPanel.java
+++ b/platform/lang-impl/src/com/intellij/formatting/contextConfiguration/CodeFragmentCodeStyleSettingsPanel.java
@@ -65,7 +65,9 @@ class CodeFragmentCodeStyleSettingsPanel extends TabbedLanguageCodeStylePanel {
 
   @Override
   protected void somethingChanged() {
-    mySomethingChangedCallback.run();
+    if (mySomethingChangedCallback != null) {
+      mySomethingChangedCallback.run();
+    }
   }
 
   @Override