diff --git a/Resources/Prototypes/Entities/Structures/Wallmounts/Signs/signs.yml b/Resources/Prototypes/Entities/Structures/Wallmounts/Signs/signs.yml
index 7560bc35ba..32202e41fd 100644
--- a/Resources/Prototypes/Entities/Structures/Wallmounts/Signs/signs.yml
+++ b/Resources/Prototypes/Entities/Structures/Wallmounts/Signs/signs.yml
@@ -16,6 +16,15 @@
     - type: Sprite
       snapCardinals: false
 
+- type: entity
+  parent: BaseSignDirectional
+  id: SignDirectionalAtmos
+  name: atmos sign
+  description: A direction sign, pointing out which way the Atmospherics department is.
+  components:
+  - type: Sprite
+    state: direction_atmos
+
 - type: entity
   parent: BaseSignDirectional
   id: SignDirectionalBar