diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index ca54b2da989..83fb4293beb 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -43,6 +43,9 @@ Release 2.1.1-beta - UNRELEASED
 
   BUG FIXES
 
+    YARN-368. Fixed a typo in error message in Auxiliary services. (Albert Chu
+    via vinodkv)
+
 Release 2.1.0-beta - 2013-07-02
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/AuxServices.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/AuxServices.java
index 1f46cb21ffc..955ccbf19ea 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/AuxServices.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/AuxServices.java
@@ -92,7 +92,7 @@ public class AuxServices extends AbstractService
               String.format(YarnConfiguration.NM_AUX_SERVICE_FMT, sName), null,
               AuxiliaryService.class);
         if (null == sClass) {
-          throw new RuntimeException("No class defiend for " + sName);
+          throw new RuntimeException("No class defined for " + sName);
         }
         AuxiliaryService s = ReflectionUtils.newInstance(sClass, conf);
         // TODO better use s.getName()?