diff --git a/dlls/comctl32/trackbar.c b/dlls/comctl32/trackbar.c
index 5abc77fb8a4..c924b5304e1 100644
--- a/dlls/comctl32/trackbar.c
+++ b/dlls/comctl32/trackbar.c
@@ -135,18 +135,15 @@ static inline int notify (const TRACKBAR_INFO *infoPtr, INT code)
     return notify_hdr(infoPtr, code, &nmh);
 }
 
-static BOOL
-notify_with_scroll (const TRACKBAR_INFO *infoPtr, UINT code)
+static void notify_with_scroll (const TRACKBAR_INFO *infoPtr, UINT code)
 {
-    BOOL bVert = infoPtr->dwStyle & TBS_VERT;
+    UINT scroll = infoPtr->dwStyle & TBS_VERT ? WM_VSCROLL : WM_HSCROLL;
 
     TRACE("%x\n", code);
 
-    return (BOOL) SendMessageW (infoPtr->hwndNotify,
-                                bVert ? WM_VSCROLL : WM_HSCROLL,
-				(WPARAM)code, (LPARAM)infoPtr->hwndSelf);
+    SendMessageW (infoPtr->hwndNotify, scroll, code, (LPARAM)infoPtr->hwndSelf);
 }
-    
+
 static void TRACKBAR_RecalculateTics (TRACKBAR_INFO *infoPtr)
 {
     int tic;