diff --git a/code/game/atom_procs.dm b/code/game/atom_procs.dm
index ef19edb415..673afdce6a 100644
--- a/code/game/atom_procs.dm
+++ b/code/game/atom_procs.dm
@@ -194,7 +194,9 @@
 		var/mob/living/silicon/ai/ai = usr
 		if (ai.control_disabled)
 			return
-	if (usr:lockcharge) return
+	if (istype (usr, /mob/living/silicon/robot))
+		var/mob/living/silicon/robot/bot = usr
+		if (bot.lockcharge) return
 	..()