diff --git a/server/src/main/java/com/cloud/storage/VolumeApiServiceImpl.java b/server/src/main/java/com/cloud/storage/VolumeApiServiceImpl.java
index 8679221107d..02add0db174 100644
--- a/server/src/main/java/com/cloud/storage/VolumeApiServiceImpl.java
+++ b/server/src/main/java/com/cloud/storage/VolumeApiServiceImpl.java
@@ -1895,7 +1895,8 @@ public class VolumeApiServiceImpl extends ManagerBase implements VolumeApiServic
                 } else if (jobResult instanceof ResourceAllocationException) {
                     throw (ResourceAllocationException)jobResult;
                 } else if (jobResult instanceof Throwable) {
-                    throw new RuntimeException("Unexpected exception", (Throwable)jobResult);
+                    Throwable throwable = (Throwable) jobResult;
+                    throw new RuntimeException(String.format("Unexpected exception: %s", throwable.getMessage()), throwable);
                 }
             }