diff --git a/src/compositor/meta-window-drag.c b/src/compositor/meta-window-drag.c
index 83282aa83..49cc37d0f 100644
--- a/src/compositor/meta-window-drag.c
+++ b/src/compositor/meta-window-drag.c
@@ -1774,3 +1774,12 @@ meta_window_drag_begin (MetaWindowDrag *window_drag,
 
   return TRUE;
 }
+
+void
+meta_window_drag_update_resize (MetaWindowDrag *window_drag)
+{
+  update_resize (window_drag,
+                 window_drag->last_edge_resistance_flags,
+                 window_drag->latest_motion_x,
+                 window_drag->latest_motion_y);
+}
diff --git a/src/compositor/meta-window-drag.h b/src/compositor/meta-window-drag.h
index 65f3e135e..05690515c 100644
--- a/src/compositor/meta-window-drag.h
+++ b/src/compositor/meta-window-drag.h
@@ -37,4 +37,6 @@ gboolean meta_window_drag_begin (MetaWindowDrag *drag,
 
 void meta_window_drag_end (MetaWindowDrag *drag);
 
+void meta_window_drag_update_resize (MetaWindowDrag *drag);
+
 #endif /* META_WINDOW_DRAG_H */