diff --git a/CHANGES.txt b/CHANGES.txt
index d395a9ffaa3..21a3aa986df 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -313,6 +313,7 @@ Optimizations
 Test Cases
   1. Added TestTermScorer.java (Grant Ingersoll)
   2. Added TestWindowsMMap.java (Benson Margulies via Mike McCandless)
+  3. LUCENE-744 Append the user.name property onto the temporary directory that is created so it doesn't interfere with other users. (Grant Ingersoll)
 
 Documentation
 
diff --git a/src/test/org/apache/lucene/index/TestFieldsReader.java b/src/test/org/apache/lucene/index/TestFieldsReader.java
index 64f2f9e0ad0..7bba89bda5c 100644
--- a/src/test/org/apache/lucene/index/TestFieldsReader.java
+++ b/src/test/org/apache/lucene/index/TestFieldsReader.java
@@ -164,7 +164,8 @@ public class TestFieldsReader extends TestCase {
    */
   public void testLazyPerformance() throws Exception {
     String tmpIODir = System.getProperty("java.io.tmpdir");
-    String path = tmpIODir + File.separator + "lazyDir";
+    String userName = System.getProperty("user.name");
+    String path = tmpIODir + File.separator + "lazyDir" + userName;
     File file = new File(path);
     FSDirectory tmpDir = FSDirectory.getDirectory(file, true);
     assertTrue(tmpDir != null);