1 files changed, 1 insertions, 1 deletions

diff --git a/src/window.h b/src/window.h
index 84180c96a7d..1fd19369c33 100644
--- a/src/window.h
+++ b/src/window.h
@@ -793,7 +793,7 @@ wset_next_buffers (struct window *w, Lisp_Object val)
    || WINDOW_HAS_VERTICAL_SCROLL_BAR_ON_RIGHT (W))
 
 #if (defined (HAVE_WINDOW_SYSTEM)                                       \
-     && ((defined (USE_TOOLKIT_SCROLL_BARS) && !defined (HAVE_NS))      \
+     && ((defined (USE_TOOLKIT_SCROLL_BARS))    \
          || defined (HAVE_NTGUI)))
 # define USE_HORIZONTAL_SCROLL_BARS true
 #else