diff --git a/src/main/java/ru/dbotthepony/mc/otm/mixin/MixinAnvilBlock.java b/src/main/java/ru/dbotthepony/mc/otm/mixin/MixinAnvilBlock.java
index 799482713..6569a8cd6 100644
--- a/src/main/java/ru/dbotthepony/mc/otm/mixin/MixinAnvilBlock.java
+++ b/src/main/java/ru/dbotthepony/mc/otm/mixin/MixinAnvilBlock.java
@@ -20,7 +20,7 @@ public class MixinAnvilBlock {
 
 		for (int i = 0; i < list.size(); i++) {
 			if (pState.is(list.get(i))) {
-				if (i == list.size()) {
+				if (i == list.size() - 1) {
 					info.setReturnValue(null);
 				} else {
 					info.setReturnValue(list.get(i + 1).defaultBlockState().setValue(AnvilBlock.FACING, pState.getValue(AnvilBlock.FACING)));