diff --git a/hadoop-yarn-project/CHANGES.txt b/hadoop-yarn-project/CHANGES.txt
index c238462037..f5c0b6fb42 100644
--- a/hadoop-yarn-project/CHANGES.txt
+++ b/hadoop-yarn-project/CHANGES.txt
@@ -298,6 +298,9 @@ Release 2.4.0 - UNRELEASED
     YARN-1409. NonAggregatingLogHandler can throw RejectedExecutionException
     (Tsuyoshi OZAWA via jlowe)
 
+    YARN-1293. Fixed TestContainerLaunch#testInvalidEnvSyntaxDiagnostics failure
+    caused by non-English system locale. (Tsuyoshi OZAWA via jianhe)
+
 Release 2.3.0 - UNRELEASED
 
   INCOMPATIBLE CHANGES
diff --git a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/TestContainerLaunch.java b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/TestContainerLaunch.java
index 696ebb9796..81cf7979ba 100644
--- a/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/TestContainerLaunch.java
+++ b/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/launcher/TestContainerLaunch.java
@@ -260,8 +260,12 @@ public class TestContainerLaunch extends BaseContainerManagerTest {
       fos.flush();
       fos.close();
 
+      // It is supposed that LANG is set as C.
+      Map<String, String> cmdEnv = new HashMap<String, String>();
+      cmdEnv.put("LANG", "C");
       Shell.ShellCommandExecutor shexc
-      = new Shell.ShellCommandExecutor(new String[]{shellFile.getAbsolutePath()}, tmpDir);
+      = new Shell.ShellCommandExecutor(new String[]{shellFile.getAbsolutePath()},
+        tmpDir, cmdEnv);
       String diagnostics = null;
       try {
         shexc.execute();