diff --git a/platform/core-impl/resources/META-INF/core-impl.xml b/platform/core-impl/resources/META-INF/core-impl.xml
index 8ba70a3d50b2..f26db58653cd 100644
--- a/platform/core-impl/resources/META-INF/core-impl.xml
+++ b/platform/core-impl/resources/META-INF/core-impl.xml
@@ -5,7 +5,8 @@
     </extensionPoint>
     <extensionPoint name="psi.treeChangePreprocessor"
                     interface="com.intellij.psi.impl.PsiTreeChangePreprocessor"
-                    area="IDEA_PROJECT"/>
+                    area="IDEA_PROJECT"
+                    dynamic="true"/>
     <extensionPoint name="smartPointer.anchorProvider" interface="com.intellij.psi.impl.smartPointers.SmartPointerAnchorProvider" dynamic="true"/>
   </extensionPoints>
   <extensions defaultExtensionNs="com.intellij">