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 49403892ea80..9c3684709f42 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
@@ -959,7 +959,12 @@ public class ProjectViewImpl extends ProjectView implements PersistentStateCompo
     AnAction collapseAllAction = CommonActionsManager.getInstance().createCollapseAllAction(new DefaultTreeExpander(() -> {
       AbstractProjectViewPane pane = getCurrentProjectViewPane();
       return pane == null ? null : pane.myTree;
-    }), getComponent());
+    }) {
+      @Override
+      protected void collapseAll(@NotNull JTree tree, boolean strict, int keepSelectionLevel) {
+        super.collapseAll(tree, false, keepSelectionLevel);
+      }
+    }, getComponent());
     collapseAllAction.getTemplatePresentation().setIcon(AllIcons.Actions.Collapseall);
     titleActions.add(collapseAllAction);
   }
diff --git a/platform/platform-api/src/com/intellij/ide/DefaultTreeExpander.kt b/platform/platform-api/src/com/intellij/ide/DefaultTreeExpander.kt
index d0c9904cd9d9..11e7da6924c2 100644
--- a/platform/platform-api/src/com/intellij/ide/DefaultTreeExpander.kt
+++ b/platform/platform-api/src/com/intellij/ide/DefaultTreeExpander.kt
@@ -34,7 +34,11 @@ open class DefaultTreeExpander(private val supplier: () -> JTree?) : TreeExpande
   }
 
   protected open fun collapseAll(tree: JTree, keepSelectionLevel: Int) {
-    TreeUtil.collapseAll(tree, keepSelectionLevel)
+    collapseAll(tree, true, keepSelectionLevel)
+  }
+
+  protected open fun collapseAll(tree: JTree, strict: Boolean, keepSelectionLevel: Int) {
+    TreeUtil.collapseAll(tree, strict, keepSelectionLevel)
     showSelectionCentered(tree)
   }