From d4e94872d8403923c7c4bfd2aabc8f1cbc104112 Mon Sep 17 00:00:00 2001
From: alexcrea <contact@alexcrea.xyz>
Date: Wed, 4 Feb 2026 15:10:54 +0100
Subject: [PATCH] fix recipe error

---
 .../kotlin/xyz/alexcrea/cuanvil/recipe/AnvilCustomRecipe.kt | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/main/kotlin/xyz/alexcrea/cuanvil/recipe/AnvilCustomRecipe.kt b/src/main/kotlin/xyz/alexcrea/cuanvil/recipe/AnvilCustomRecipe.kt
index 4f83c14..57eb124 100644
--- a/src/main/kotlin/xyz/alexcrea/cuanvil/recipe/AnvilCustomRecipe.kt
+++ b/src/main/kotlin/xyz/alexcrea/cuanvil/recipe/AnvilCustomRecipe.kt
@@ -81,7 +81,9 @@ class AnvilCustomRecipe(
     }
 
     fun validate(): Boolean {
-        return !leftItem.isAir && !rightItem.isAir && !resultItem.isAir
+        return !leftItem.isAir &&
+                (rightItem == null || !resultItem.isAir) &&
+                !resultItem.isAir
     }
 
     fun saveToFile(writeFile: Boolean, doBackup: Boolean) {
@@ -159,7 +161,7 @@ class AnvilCustomRecipe(
         CustomAnvil.verboseLog("Testing $name $leftItem")
         // We assume this function can be call only if leftItem != null
 
-        // Test is valid
+        // Test if valid
         if (!validate()) return false
 
         val leftSimilar = leftItem!!.isSimilar(item1)