diff --git a/src/main/java/com/cleanroommc/groovyscript/compat/vanilla/ItemStackMixinExpansion.java b/src/main/java/com/cleanroommc/groovyscript/compat/vanilla/ItemStackMixinExpansion.java
index 11ef24099..ce7e5326a 100644
--- a/src/main/java/com/cleanroommc/groovyscript/compat/vanilla/ItemStackMixinExpansion.java
+++ b/src/main/java/com/cleanroommc/groovyscript/compat/vanilla/ItemStackMixinExpansion.java
@@ -66,7 +66,7 @@ default ItemStackMixinExpansion exactCopy() {
 
     @Override
     default boolean test(ItemStack stack) {
-        if (!OreDictionary.itemMatches(grs$getItemStack(), stack, false) && (grs$getMatcher() == null || !grs$getMatcher().test(stack))) {
+        if (!OreDictionary.itemMatches(grs$getItemStack(), stack, false) || (grs$getMatcher() != null && !grs$getMatcher().test(stack))) {
             return false;
         }
         if (grs$getNbtMatcher() != null) {