2 files changed, 2 insertions, 1 deletions

diff --git a/src/haiku_support.cc b/src/haiku_support.cc
index 64f9aa8a552..04470a3b96e 100644
--- a/src/haiku_support.cc
+++ b/src/haiku_support.cc
@@ -1661,7 +1661,6 @@ BWindow_set_visible (void *window, int visible_p)
         win->Minimize (false);
       win->EmacsHide ();
     }
-  win->Sync ();
 }
 
 /* Change the title of WINDOW to the multibyte string TITLE.  */
diff --git a/src/haikufns.c b/src/haikufns.c
index 743ecf1aef5..036da7975f8 100644
--- a/src/haikufns.c
+++ b/src/haikufns.c
@@ -1393,6 +1393,7 @@ haiku_visualize_frame (struct frame *f)
       if (FRAME_NO_FOCUS_ON_MAP (f) &&
           !FRAME_NO_ACCEPT_FOCUS (f))
         BWindow_set_avoid_focus (FRAME_HAIKU_WINDOW (f), 0);
+      BWindow_sync (FRAME_HAIKU_WINDOW (f));
 
       haiku_set_offset (f, f->left_pos, f->top_pos, 0);
 
@@ -1409,6 +1410,7 @@ haiku_unvisualize_frame (struct frame *f)
   block_input ();
 
   BWindow_set_visible (FRAME_HAIKU_WINDOW (f), 0);
+  BWindow_sync (FRAME_HAIKU_WINDOW (f));
   SET_FRAME_VISIBLE (f, 0);
   SET_FRAME_ICONIFIED (f, 0);