diff --git a/build.properties b/build.properties
index a785b938..d67ef8c2 100644
--- a/build.properties
+++ b/build.properties
@@ -1,7 +1,7 @@
 minecraft.version=1.7.10
 forge.version=10.13.4.1566-1.7.10
 
-gt.version=5.09.25
+gt.version=5.09.26pre
 
 ae2.version=rv2-beta-33
 applecore.version=1.7.10-1.2.1+107.59407
diff --git a/src/main/java/gregtech/api/util/GT_Utility.java b/src/main/java/gregtech/api/util/GT_Utility.java
index f14d4ad0..31cf28b2 100644
--- a/src/main/java/gregtech/api/util/GT_Utility.java
+++ b/src/main/java/gregtech/api/util/GT_Utility.java
@@ -863,6 +863,7 @@ public class GT_Utility {
         ItemStack[] tStack = GT_OreDictUnificator.getStackArray(true, aOutput);
         if(tStack==null||(tStack.length>0&&GT_Utility.areStacksEqual(aInput, tStack[0])))return false;
         if (tOreName != null) {
+        	if(tOreName.toString().equals("dustAsh")&&tStack[0].getUnlocalizedName().equals("tile.volcanicAsh"))return false;
             aRecipeList.put(new RecipeInputOreDict(tOreName.toString(), aInput.stackSize), new RecipeOutput(aNBT, tStack));
         } else {
             aRecipeList.put(new RecipeInputItemStack(copy(aInput), aInput.stackSize), new RecipeOutput(aNBT, tStack));