diff --git a/code/modules/assembly/timer.dm b/code/modules/assembly/timer.dm
index 0f981e29f9..1bc653662b 100644
--- a/code/modules/assembly/timer.dm
+++ b/code/modules/assembly/timer.dm
@@ -17,7 +17,7 @@
 	if(!..())
 		return FALSE
 
-	timing = !timing
+	set_state(!timing)
 
 	update_icon()
 	return 0