diff --git a/platform/extensions/src/com/intellij/openapi/extensions/impl/ExtensionPointImpl.java b/platform/extensions/src/com/intellij/openapi/extensions/impl/ExtensionPointImpl.java
index bf8b2768fbec..703613c2b757 100644
--- a/platform/extensions/src/com/intellij/openapi/extensions/impl/ExtensionPointImpl.java
+++ b/platform/extensions/src/com/intellij/openapi/extensions/impl/ExtensionPointImpl.java
@@ -767,6 +767,10 @@ public abstract class ExtensionPointImpl<T> implements ExtensionPoint<T>, Iterab
     return extensionClass;
   }
 
+  public void clearExtensionClass() {
+    myExtensionClass = null;
+  }
+
   @Override
   public String toString() {
     return getName();