diff --git a/desktop-shell/shell.c b/desktop-shell/shell.c
index 54469d3a..4641c030 100644
--- a/desktop-shell/shell.c
+++ b/desktop-shell/shell.c
@@ -1626,8 +1626,8 @@ resize_grab_motion(struct weston_pointer_grab *grab,
 		width = max_size.width;
 	if (height < min_size.height)
 		height = min_size.height;
-	else if (max_size.width > 0 && width > max_size.width)
-		width = max_size.width;
+	else if (max_size.height > 0 && height > max_size.height)
+		height = max_size.height;
 	weston_desktop_surface_set_size(shsurf->desktop_surface, width, height);
 }