diff --git a/src/core/display.c b/src/core/display.c
index 1f352d5f2..ae5bc2caf 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -725,7 +725,7 @@ meta_display_open (void)
   display->grab_tile_mode = META_TILE_NONE;
   display->grab_tile_monitor_number = -1;
 
-  display->grab_edge_resistance_data = NULL;
+  meta_display_cleanup_edges (display);
 
   meta_display_init_keys (display);