diff --git a/code/game/machinery/suit_storage_unit.dm b/code/game/machinery/suit_storage_unit.dm
index cb100865d6..a2e4dabef1 100644
--- a/code/game/machinery/suit_storage_unit.dm
+++ b/code/game/machinery/suit_storage_unit.dm
@@ -383,6 +383,8 @@
 					dump_contents() // Dump out contents if someone is in there.
 			. = TRUE
 		if("lock")
+			if(state_open)
+				return
 			locked = !locked
 			. = TRUE
 		if("uv")