diff --git a/ChangeLog.txt b/ChangeLog.txt
index bd9bb0ef..35814adc 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -1,6 +1,7 @@
 7/22/2015 0.8.10.8
   Added E.V.C GUI.
   API Change: Tile whitelist now requires capacity, and includes a dual add method.
+  Fixes #216: Arcane crafting patterns can no longer substitute items, must match exactly.
 
 7/21/2015 0.8.10.8
   Added Essentia Vibration Chamber recipe & research.
diff --git a/src/main/java/thaumicenergistics/integration/tc/ArcaneCraftingPattern.java b/src/main/java/thaumicenergistics/integration/tc/ArcaneCraftingPattern.java
index 8aee45dc..cd68fb9d 100644
--- a/src/main/java/thaumicenergistics/integration/tc/ArcaneCraftingPattern.java
+++ b/src/main/java/thaumicenergistics/integration/tc/ArcaneCraftingPattern.java
@@ -98,7 +98,8 @@ public class ArcaneCraftingPattern
 	@Override
 	public boolean canSubstitute()
 	{
-		return true;
+		// This needs to be precise Issue #216
+		return false;
 	}
 
 	/**