diff --git a/src/test/java/org/apache/hadoop/hbase/io/encoding/TestChangingEncoding.java b/src/test/java/org/apache/hadoop/hbase/io/encoding/TestChangingEncoding.java
index d3825025ae2..d3418a03d0a 100644
--- a/src/test/java/org/apache/hadoop/hbase/io/encoding/TestChangingEncoding.java
+++ b/src/test/java/org/apache/hadoop/hbase/io/encoding/TestChangingEncoding.java
@@ -67,7 +67,7 @@ public class TestChangingEncoding {
       new HBaseTestingUtility();
   private static final Configuration conf = TEST_UTIL.getConfiguration();
 
-  private static final int TIMEOUT_MS = 120000;
+  private static final int TIMEOUT_MS = 240000;
 
   private HBaseAdmin admin;
   private HColumnDescriptor hcd;