diff --git a/code/modules/spells/spell.dm b/code/modules/spells/spell.dm
index dd6f7136efe..6ad4f09415d 100644
--- a/code/modules/spells/spell.dm
+++ b/code/modules/spells/spell.dm
@@ -192,7 +192,7 @@
 				if(feedback)
 					to_chat(owner, span_warning("You don't feel strong enough without your robe!"))
 				return FALSE
-			if(!(human_owner.head?.clothing_flags & CASTING_CLOTHES) || (human_owner.glasses?.clothing_flags & CASTING_CLOTHES))
+			if(!(human_owner.head?.clothing_flags & CASTING_CLOTHES) && !(human_owner.glasses?.clothing_flags & CASTING_CLOTHES))
 				if(feedback)
 					to_chat(owner, span_warning("You don't feel strong enough without your hat!"))
 				return FALSE