diff --git a/sd/source/ui/toolpanel/TaskPaneFocusManager.cxx b/sd/source/ui/toolpanel/TaskPaneFocusManager.cxx
index b14593115c9c..ce8071230fb4 100644
--- a/sd/source/ui/toolpanel/TaskPaneFocusManager.cxx
+++ b/sd/source/ui/toolpanel/TaskPaneFocusManager.cxx
@@ -41,7 +41,7 @@ class WindowHash
 {
 public:
     size_t operator()(const ::Window* argument) const
-    { return reinterpret_cast<unsigned long>(argument); }
+    { return reinterpret_cast<uintptr_t>(argument); }
 };
 
 class EventDescriptor