diff --git a/Resources/Prototypes/Entities/Structures/Doors/Firelocks/firelock.yml b/Resources/Prototypes/Entities/Structures/Doors/Firelocks/firelock.yml
index bba134dd1b..7b7b7b4c31 100644
--- a/Resources/Prototypes/Entities/Structures/Doors/Firelocks/firelock.yml
+++ b/Resources/Prototypes/Entities/Structures/Doors/Firelocks/firelock.yml
@@ -112,7 +112,7 @@
     - type: Physics
       fixtures:
       - shape:
-          !type:PhysShapeRect
+          !type:PhysShapeAabb
           bounds: "-0.2,-0.49,-0.49,0.49" # don't want this colliding with walls or they won't close
         mask:
           - MobImpassable