diff --git a/Resources/Prototypes/Entities/Objects/Misc/fluff_lights.yml b/Resources/Prototypes/Entities/Objects/Misc/fluff_lights.yml
index daaaef9c66..a59a462428 100644
--- a/Resources/Prototypes/Entities/Objects/Misc/fluff_lights.yml
+++ b/Resources/Prototypes/Entities/Objects/Misc/fluff_lights.yml
@@ -96,13 +96,14 @@
   - type: Fixtures
     fixtures:
     - shape:
-        !type:PhysShapeAabb {}
+        !type:PhysShapeAabb
+          bounds: "-0.2, -0.5, 0.2, 0.5"
+      mass: 20
+      mask:
+      - Impassable
       layer:
       - Opaque
       - Impassable
-      - MobImpassable
-      - VaultImpassable
-      - SmallImpassable
   - type: PointLight
     enabled: false
     radius: 8