diff --git a/src/gui_w48.c b/src/gui_w48.c
index c4ce0bc..8b4684a 100644
--- a/src/gui_w48.c
+++ b/src/gui_w48.c
@@ -1121,8 +1121,7 @@
 	    top = TOOLBAR_BUTTON_HEIGHT + TOOLBAR_BORDER_HEIGHT;
 #endif
 
-	GetWindowRect(s_hwnd, &rect);
-	SetRect(&rect, 0, top, rect.right, TABLINE_HEIGHT);
+	SetRect(&rect, 0, top, w, TABLINE_HEIGHT);
 	TabCtrl_AdjustRect(s_tabhwnd, TRUE, &rect);
 	MoveWindow(s_tabhwnd, 0, top, rect.right, rect.bottom, TRUE);
     }