diff --git a/src/app/ui/toolbar.cpp b/src/app/ui/toolbar.cpp
index c819c6bd2..32824b27f 100644
--- a/src/app/ui/toolbar.cpp
+++ b/src/app/ui/toolbar.cpp
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2018-2020  Igara Studio S.A.
+// Copyright (C) 2018-2021  Igara Studio S.A.
 // Copyright (C) 2001-2018  David Capello
 //
 // This program is distributed under the terms of
@@ -425,7 +425,7 @@ void ToolBar::openPopupWindow(int group_index, ToolGroup* tool_group)
 
   // Set hotregion of popup window
   Region rgn(gfx::Rect(rc).enlarge(16*guiscale()));
-  rgn.createUnion(rgn, Region(bounds()));
+  rgn.createUnion(rgn, Region(boundsOnScreen()));
   m_popupWindow->setHotRegion(rgn);
   m_popupWindow->setAutoRemap(false);
   m_popupWindow->setBounds(rc);