diff --git a/src/main/java/org/elasticsearch/index/shard/service/InternalIndexShard.java b/src/main/java/org/elasticsearch/index/shard/service/InternalIndexShard.java
index 6c92f4c9ac8..3464798bf13 100644
--- a/src/main/java/org/elasticsearch/index/shard/service/InternalIndexShard.java
+++ b/src/main/java/org/elasticsearch/index/shard/service/InternalIndexShard.java
@@ -21,7 +21,7 @@ package org.elasticsearch.index.shard.service;
 
 import com.google.common.base.Charsets;
 import org.apache.lucene.index.CheckIndex;
-import org.apache.lucene.index.IndexReader;
+import org.apache.lucene.index.DirectoryReader;
 import org.apache.lucene.search.Filter;
 import org.apache.lucene.search.FilteredQuery;
 import org.apache.lucene.search.Query;
@@ -808,11 +808,13 @@ public class InternalIndexShard extends AbstractIndexShardComponent implements I
         }
     }
 
+    //LUCENE 4 UPGRADE: currently passing 'null' codec to fixIndex, when we have proper support for a codec service
+    // we'll us that to figure out the codec that should be used
     private void checkIndex(boolean throwException) throws IndexShardException {
         try {
             checkIndexTook = 0;
             long time = System.currentTimeMillis();
-            if (!IndexReader.indexExists(store.directory())) {
+            if (!DirectoryReader.indexExists(store.directory())) {
                 return;
             }
             CheckIndex checkIndex = new CheckIndex(store.directory());
@@ -831,7 +833,7 @@ public class InternalIndexShard extends AbstractIndexShardComponent implements I
                     if (logger.isDebugEnabled()) {
                         logger.debug("fixing index, writing new segments file ...");
                     }
-                    checkIndex.fixIndex(status);
+                    checkIndex.fixIndex(status, null);
                     if (logger.isDebugEnabled()) {
                         logger.debug("index fixed, wrote new segments file \"{}\"", status.segmentsFileName);
                     }