diff --git a/code/game/machinery/doors/firedoor.dm b/code/game/machinery/doors/firedoor.dm
index 808c1a6ad69d..25a60ec124d8 100644
--- a/code/game/machinery/doors/firedoor.dm
+++ b/code/game/machinery/doors/firedoor.dm
@@ -343,7 +343,7 @@
 	check_pulls()
 	. = ..()
 
-/obj/machinery/door/firedoor/border_only/check_pulls()
+/obj/machinery/door/firedoor/border_only/proc/check_pulls()
 	var/turf/T1 = get_turf(src)
 	var/turf/T2 = get_step(T1, dir)
 	for(var/mob/living/M in T1)