diff --git a/proxmoxer/core.py b/proxmoxer/core.py
index 43c3a06..9da7e9b 100644
--- a/proxmoxer/core.py
+++ b/proxmoxer/core.py
@@ -75,8 +75,12 @@ def _request(self, method, data=None, params=None):
         logger.debug('Status code: %s, output: %s', resp.status_code, resp.content)
 
         if resp.status_code >= 400:
-            raise ResourceException("{0} {1}: {2}".format(resp.status_code, httplib.responses[resp.status_code],
-                                                          resp.content))
+            if(hasattr(resp, 'reason')) :
+                raise ResourceException("{0} {1}: {2} - {3}".format(resp.status_code, httplib.responses[resp.status_code],
+                                                                    resp.reason, resp.content))
+            else :
+                raise ResourceException("{0} {1}: {2}".format(resp.status_code, httplib.responses[resp.status_code],
+                                                                    resp.content))
         elif 200 <= resp.status_code <= 299:
             return self._store["serializer"].loads(resp)