diff --git a/core/src/com/cloud/storage/template/DownloadManagerImpl.java b/core/src/com/cloud/storage/template/DownloadManagerImpl.java
index 4f01842cbab..b9fc038dca6 100755
--- a/core/src/com/cloud/storage/template/DownloadManagerImpl.java
+++ b/core/src/com/cloud/storage/template/DownloadManagerImpl.java
@@ -293,7 +293,7 @@ public class DownloadManagerImpl implements DownloadManager {
             }       
             byte[] md5sum = digest.digest();
             BigInteger bigInt = new BigInteger(1, md5sum);
-            checksum = bigInt.toString(16);
+            checksum = String.format("%032x",bigInt.toString(16));
             return checksum;
         }catch(IOException e) {
         	return null;