diff --git a/hadoop-mapreduce-project/CHANGES.txt b/hadoop-mapreduce-project/CHANGES.txt
index 40782eee931..d1ac8073ccf 100644
--- a/hadoop-mapreduce-project/CHANGES.txt
+++ b/hadoop-mapreduce-project/CHANGES.txt
@@ -45,6 +45,9 @@ Release 2.0.3-alpha - Unreleased
 
     MAPREDUCE-1806. CombineFileInputFormat does not work with paths not on default FS. (Gera Shegalov via tucu)
 
+    MAPREDUCE-4777. In TestIFile, testIFileReaderWithCodec relies on
+    testIFileWriterWithCodec. (Sandy Ryza via tomwhite)
+
 Release 2.0.2-alpha - 2012-09-07 
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestIFile.java b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestIFile.java
index 0411711b5fa..3514b15becf 100644
--- a/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestIFile.java
+++ b/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/TestIFile.java
@@ -56,6 +56,10 @@ public class TestIFile {
     Path path = new Path(new Path("build/test.ifile"), "data");
     DefaultCodec codec = new GzipCodec();
     codec.setConf(conf);
+    IFile.Writer<Text, Text> writer =
+        new IFile.Writer<Text, Text>(conf, rfs, path, Text.class, Text.class,
+                                     codec, null);
+    writer.close();
     IFile.Reader<Text, Text> reader =
       new IFile.Reader<Text, Text>(conf, rfs, path, codec, null);
     reader.close();