diff --git a/src/main/java/mod/acgaming/universaltweaks/tweaks/performance/craftingcache/UTCraftingCache.java b/src/main/java/mod/acgaming/universaltweaks/tweaks/performance/craftingcache/UTCraftingCache.java
index 39de9864..bc4a8541 100644
--- a/src/main/java/mod/acgaming/universaltweaks/tweaks/performance/craftingcache/UTCraftingCache.java
+++ b/src/main/java/mod/acgaming/universaltweaks/tweaks/performance/craftingcache/UTCraftingCache.java
@@ -55,7 +55,7 @@ public static IRecipe findMatchingRecipe(InventoryCrafting craftMatrix, World wo
         return findMatchingRecipeDefault(craftMatrix, worldIn);
     }
 
-    public static UTOptionalContent<IRecipe> getOrCreateCachedRecipe(InventoryCrafting craftMatrix)
+    public static synchronized UTOptionalContent<IRecipe> getOrCreateCachedRecipe(InventoryCrafting craftMatrix)
     {
         UTCraftMatrixCacheKey matrixKey = new UTCraftMatrixCacheKey(craftMatrix);
         UTOptionalContent<IRecipe> optionalContent = NON_NBT_CRAFT_CACHE.getAndMoveToFirst(matrixKey.hashCode());