diff --git a/src/main/java/com/gregtechceu/gtceu/data/recipe/generated/MaterialRecipeHandler.java b/src/main/java/com/gregtechceu/gtceu/data/recipe/generated/MaterialRecipeHandler.java
index 325016d996..62bcf8a51b 100644
--- a/src/main/java/com/gregtechceu/gtceu/data/recipe/generated/MaterialRecipeHandler.java
+++ b/src/main/java/com/gregtechceu/gtceu/data/recipe/generated/MaterialRecipeHandler.java
@@ -408,7 +408,7 @@ public static void processGemConversion(TagPrefix gemPrefix, Material material,
                     String.format("gem_to_gem_%s_%s", FormattingUtil.toLowerCaseUnder(prevPrefix.name),
                             material.getName()),
                     prevStack,
-                    "h", new UnificationEntry(gemPrefix, material));
+                    'h', new UnificationEntry(gemPrefix, material));
 
             CUTTER_RECIPES
                     .recipeBuilder("cut_" + material.getName() + "_" + FormattingUtil.toLowerCaseUnder(gemPrefix.name) +