diff --git a/platform/lang-impl/src/com/intellij/execution/impl/RunManagerImpl.java b/platform/lang-impl/src/com/intellij/execution/impl/RunManagerImpl.java
index 194ba33cce8a..5cdf79154ce7 100644
--- a/platform/lang-impl/src/com/intellij/execution/impl/RunManagerImpl.java
+++ b/platform/lang-impl/src/com/intellij/execution/impl/RunManagerImpl.java
@@ -515,6 +515,7 @@ public class RunManagerImpl extends RunManagerEx implements JDOMExternalizable,
   // used by MPS, don't delete
   public void clearAll(){
     clear();
+    myTypesByName.clear();
     initializeConfigurationTypes(new ConfigurationType[0]);
   }