diff --git a/platform/platform-impl/src/com/intellij/openapi/wm/impl/content/SingleContentLayout.kt b/platform/platform-impl/src/com/intellij/openapi/wm/impl/content/SingleContentLayout.kt
index 929638b9186d..d44a82cae63e 100644
--- a/platform/platform-impl/src/com/intellij/openapi/wm/impl/content/SingleContentLayout.kt
+++ b/platform/platform-impl/src/com/intellij/openapi/wm/impl/content/SingleContentLayout.kt
@@ -17,6 +17,7 @@ import com.intellij.openapi.ui.popup.PopupStep
 import com.intellij.openapi.ui.popup.util.BaseListPopupStep
 import com.intellij.openapi.util.*
 import com.intellij.openapi.wm.ex.ToolWindowEx
+import com.intellij.openapi.wm.impl.InternalDecoratorImpl
 import com.intellij.ui.MouseDragHelper
 import com.intellij.ui.PopupHandler
 import com.intellij.ui.awt.RelativePoint
@@ -25,6 +26,7 @@ import com.intellij.ui.components.panels.NonOpaquePanel
 import com.intellij.ui.content.AlertIcon
 import com.intellij.ui.content.Content
 import com.intellij.ui.content.ContentManager
+import com.intellij.ui.content.impl.ContentManagerImpl
 import com.intellij.ui.tabs.*
 import com.intellij.ui.tabs.impl.JBTabsImpl
 import com.intellij.ui.tabs.impl.MorePopupAware
@@ -77,7 +79,11 @@ internal class SingleContentLayout(
   }
 
   private fun getSingleContentOrNull(): Content? {
-    return if (myTabs.size == 1) myTabs[0].content else null
+    return findTopLevelContentManager()?.contentsRecursively?.singleOrNull()
+  }
+
+  private fun findTopLevelContentManager(): ContentManagerImpl? {
+    return InternalDecoratorImpl.findTopLevelDecorator(myUi.component)?.contentManager as? ContentManagerImpl
   }
 
   private fun tryUpdateContentView() {