diff --git a/src/x11/meta-sync-counter.c b/src/x11/meta-sync-counter.c
index 71bd89dbc..f6df167b0 100644
--- a/src/x11/meta-sync-counter.c
+++ b/src/x11/meta-sync-counter.c
@@ -25,6 +25,7 @@
 #include "core/window-private.h"
 #include "meta/meta-x11-errors.h"
 #include "x11/meta-x11-display-private.h"
+#include "x11/window-x11-private.h"
 
 /* Each time the application updates the sync request counter to a new even value
  * value, we queue a frame into the windows list of frames. Once we're painting
@@ -206,12 +207,7 @@ sync_request_timeout (gpointer data)
 
   if (window == window->display->grab_window &&
       meta_grab_op_is_resizing (window->display->grab_op))
-    {
-      meta_window_update_resize (window,
-                                 window->display->grab_last_edge_resistance_flags,
-                                 window->display->grab_latest_motion_x,
-                                 window->display->grab_latest_motion_y);
-    }
+    meta_window_x11_check_update_resize (window);
 
   return G_SOURCE_REMOVE;
 }
@@ -316,10 +312,7 @@ meta_sync_counter_update (MetaSyncCounter *sync_counter,
 
           /* This means we are ready for another configure;
            * no pointer round trip here, to keep in sync */
-          meta_window_update_resize (window,
-                                     window->display->grab_last_edge_resistance_flags,
-                                     window->display->grab_latest_motion_x,
-                                     window->display->grab_latest_motion_y);
+          meta_window_x11_check_update_resize (window);
         }
     }
 
diff --git a/src/x11/window-x11-private.h b/src/x11/window-x11-private.h
index 5c738a83f..0809c795a 100644
--- a/src/x11/window-x11-private.h
+++ b/src/x11/window-x11-private.h
@@ -97,6 +97,8 @@ void meta_window_x11_queue_update_icon (MetaWindowX11 *window_x11);
 
 void meta_window_x11_initialize_state (MetaWindow *window);
 
+void meta_window_x11_check_update_resize (MetaWindow *window);
+
 G_END_DECLS
 
 #endif
diff --git a/src/x11/window-x11.c b/src/x11/window-x11.c
index 738e28780..f2df2904f 100644
--- a/src/x11/window-x11.c
+++ b/src/x11/window-x11.c
@@ -4287,3 +4287,12 @@ meta_window_x11_is_awaiting_sync_response (MetaWindow *window)
 
   return meta_sync_counter_is_waiting_response (&priv->sync_counter);
 }
+
+void
+meta_window_x11_check_update_resize (MetaWindow *window)
+{
+  meta_window_update_resize (window,
+                             window->display->grab_last_edge_resistance_flags,
+                             window->display->grab_latest_motion_x,
+                             window->display->grab_latest_motion_y);
+}