diff --git a/engine/schema/src/com/cloud/upgrade/dao/Upgrade412to420.java b/engine/schema/src/com/cloud/upgrade/dao/Upgrade412to420.java
index 4e1e094348f..0c77ce48634 100644
--- a/engine/schema/src/com/cloud/upgrade/dao/Upgrade412to420.java
+++ b/engine/schema/src/com/cloud/upgrade/dao/Upgrade412to420.java
@@ -2619,9 +2619,9 @@ public class Upgrade412to420 implements DbUpgrade {
         try {
             s_logger.debug("Setting format to RAW for all volumes on RBD primary storage pools");
             pstmt = conn.prepareStatement("UPDATE volumes SET format = 'RAW' WHERE pool_id IN(SELECT id FROM storage_pool WHERE pool_type = 'RBD')");
-            pstmt.executeQuery();
+            pstmt.executeUpdate();
         } catch (SQLException e) {
-            throw new CloudRuntimeException("Failed to update volume format to RAW for volumes on RBD pools");
+            throw new CloudRuntimeException("Failed to update volume format to RAW for volumes on RBD pools due to exception ", e);
         }
     }
 }