diff --git a/code/modules/mob/living/simple_animal/friendly/mouse.dm b/code/modules/mob/living/simple_animal/friendly/mouse.dm
index 3b9b2d720ca..4faa821701c 100644
--- a/code/modules/mob/living/simple_animal/friendly/mouse.dm
+++ b/code/modules/mob/living/simple_animal/friendly/mouse.dm
@@ -57,7 +57,7 @@
 
 /mob/living/simple_animal/mouse/Life()
 	..()
-	if(prob(0.5))
+	if(prob(0.5) && !ckey)
 		stat = UNCONSCIOUS
 		icon_state = "mouse_[mouse_color]_sleep"
 		wander = 0
@@ -220,4 +220,4 @@
 	response_harm   = "stamps on"
 	gold_core_spawnable = CHEM_MOB_SPAWN_INVALID
 	can_collar = 0
-	butcher_results = list(/obj/item/stack/sheet/metal = 1)
\ No newline at end of file
+	butcher_results = list(/obj/item/stack/sheet/metal = 1)