diff --git a/code/game/machinery/Sleeper.dm b/code/game/machinery/Sleeper.dm
index 614dfca043..50b15f81a4 100644
--- a/code/game/machinery/Sleeper.dm
+++ b/code/game/machinery/Sleeper.dm
@@ -144,7 +144,7 @@
 		open_machine()
 
 /obj/machinery/sleeper/ui_state(mob/user)
-	if(controls_inside)
+	if(!controls_inside)
 		return GLOB.notcontained_state
 	return GLOB.default_state