diff --git a/code/game/objects/items/melee/baton.dm b/code/game/objects/items/melee/baton.dm
index 85fea1f4649..77ab9abefac 100644
--- a/code/game/objects/items/melee/baton.dm
+++ b/code/game/objects/items/melee/baton.dm
@@ -574,7 +574,7 @@
 	target.set_timed_status_effect(16 SECONDS, /datum/status_effect/speech/stutter, only_if_higher = TRUE)
 
 	SEND_SIGNAL(target, COMSIG_LIVING_MINOR_SHOCK)
-	addtimer(CALLBACK(src, .proc/apply_stun_effect_end, target), 2 SECONDS)
+	addtimer(CALLBACK(src, PROC_REF(apply_stun_effect_end), target), 2 SECONDS)
 
 /// After the initial stun period, we check to see if the target needs to have the stun applied.
 /obj/item/melee/baton/security/proc/apply_stun_effect_end(mob/living/target)