diff --git a/src/msw/toplevel.cpp b/src/msw/toplevel.cpp
index 8b7cc3f70a..f1dfb54d5c 100644
--- a/src/msw/toplevel.cpp
+++ b/src/msw/toplevel.cpp
@@ -617,6 +617,8 @@ bool wxTopLevelWindowMSW::Show(bool show)
     if (frame && frame->GetMenuBar())
         frame->GetMenuBar()->AddAdornments(GetWindowStyleFlag());
 #endif
+
+    return true;
 }
 
 // ----------------------------------------------------------------------------