diff --git a/dlls/user32/menu.c b/dlls/user32/menu.c
index 58663831d7f..a5f2317a1ac 100644
--- a/dlls/user32/menu.c
+++ b/dlls/user32/menu.c
@@ -5288,6 +5288,16 @@ INT WINAPI MenuItemFromPoint(HWND hWnd, HMENU hMenu, POINT ptScreen)
 }
 
 
+/**********************************************************************
+ *      CalcMenuBar     (USER32.@)
+ */
+DWORD WINAPI CalcMenuBar(HWND hwnd, DWORD left, DWORD right, DWORD top, RECT *rect)
+{
+    FIXME("(%p, %d, %d, %d, %p): stub\n", hwnd, left, right, top, rect);
+    return 0;
+}
+
+
 /**********************************************************************
  *           translate_accelerator
  */
diff --git a/dlls/user32/user32.spec b/dlls/user32/user32.spec
index 9407c34843b..e45cafac3c0 100644
--- a/dlls/user32/user32.spec
+++ b/dlls/user32/user32.spec
@@ -22,7 +22,7 @@
 @ stdcall BroadcastSystemMessageW(long ptr long long long)
 # @ stub BuildReasonArray
 @ stdcall CalcChildScroll(long long)
-# @ stub CalcMenuBar
+@ stdcall CalcMenuBar(long long long long ptr) CalcMenuBar
 @ stdcall CallMsgFilter(ptr long) CallMsgFilterA
 @ stdcall CallMsgFilterA(ptr long)
 @ stdcall CallMsgFilterW(ptr long)