diff --git a/code/datums/components/anti_magic.dm b/code/datums/components/anti_magic.dm
index 908aef45115..f4d6fa98b0e 100644
--- a/code/datums/components/anti_magic.dm
+++ b/code/datums/components/anti_magic.dm
@@ -33,12 +33,14 @@
 	UnregisterSignal(user, COMSIG_MOB_RECEIVE_MAGIC)
 
 /datum/component/anti_magic/proc/protect(datum/source, mob/user, _magic, _holy, major, self, list/protection_sources)
-	if(((_magic && magic) || (_holy && holy)) && (self && blocks_self))
+	if(((_magic && magic) || (_holy && holy)) && (!self || !blocks_self))
 		protection_sources += parent
-		reaction.Invoke(user, major)
+		if(reaction)
+			reaction.Invoke(user, major)
 		if(major)
 			charges--
 			if(charges <= 0)
-				expire.Invoke(user)
+				if(expire)
+					expire.Invoke(user)
 		return COMPONENT_BLOCK_MAGIC