diff --git a/platform/lang-impl/src/com/intellij/ide/projectView/impl/ProjectViewImpl.java b/platform/lang-impl/src/com/intellij/ide/projectView/impl/ProjectViewImpl.java
index 78a9ec8e3464..ff6a258b719e 100644
--- a/platform/lang-impl/src/com/intellij/ide/projectView/impl/ProjectViewImpl.java
+++ b/platform/lang-impl/src/com/intellij/ide/projectView/impl/ProjectViewImpl.java
@@ -685,7 +685,7 @@ public class ProjectViewImpl extends ProjectView implements PersistentStateCompo
         AbstractProjectViewPane pane = getCurrentProjectViewPane();
         JTree tree = pane.myTree;
         if (tree != null) {
-          TreeUtil.collapseAll(tree, -1);
+          TreeUtil.collapseAll(tree, 0);
         }
       }