diff --git a/platform/platform-impl/src/com/intellij/openapi/project/impl/ProjectManagerImpl.java b/platform/platform-impl/src/com/intellij/openapi/project/impl/ProjectManagerImpl.java
index 3027077e7c5d..2b13ce37f5b2 100644
--- a/platform/platform-impl/src/com/intellij/openapi/project/impl/ProjectManagerImpl.java
+++ b/platform/platform-impl/src/com/intellij/openapi/project/impl/ProjectManagerImpl.java
@@ -415,7 +415,7 @@ public class ProjectManagerImpl extends ProjectManagerEx implements Disposable {
     synchronized (lock) {
       myOpenProjects = ArrayUtil.remove(myOpenProjects, project);
       ProjectCoreUtil.theProject = myOpenProjects.length == 1 ? myOpenProjects[0] : null;
-      myOpenProjectByHash.remove(project.getLocationHash());
+      myOpenProjectByHash.values().remove(project); // remove by value and not by key!
     }
   }