diff --git a/server/src/com/cloud/vm/VirtualMachineManagerImpl.java b/server/src/com/cloud/vm/VirtualMachineManagerImpl.java
index 40725314f46..a53e38072ff 100755
--- a/server/src/com/cloud/vm/VirtualMachineManagerImpl.java
+++ b/server/src/com/cloud/vm/VirtualMachineManagerImpl.java
@@ -866,6 +866,11 @@ public class VirtualMachineManagerImpl extends ManagerBase implements VirtualMac
             }
         }
 
+        if (startedVm == null) {
+            throw new CloudRuntimeException("Unable to start instance '" + vm.getHostName()
+                            + "' (" + vm.getUuid() + "), see management server log for details");
+        }
+
         return startedVm;
     }