diff --git a/code/controllers/subsystem.dm b/code/controllers/subsystem.dm
index c3779dc98f..4fe0812c56 100644
--- a/code/controllers/subsystem.dm
+++ b/code/controllers/subsystem.dm
@@ -172,7 +172,7 @@
 
 
 
-	if(can_fire && !(SS_NO_FIRE in flags))
+	if(can_fire && !(SS_NO_FIRE & flags))
 		msg = "[round(cost,1)]ms|[round(tick_usage,1)]%([round(tick_overrun,1)]%)|[round(ticks,0.1)]\t[msg]"
 	else
 		msg = "OFFLINE\t[msg]"