diff --git a/pyghmi/ipmi/oem/lenovo/imm.py b/pyghmi/ipmi/oem/lenovo/imm.py
index 3bed6636..1e29bc86 100644
--- a/pyghmi/ipmi/oem/lenovo/imm.py
+++ b/pyghmi/ipmi/oem/lenovo/imm.py
@@ -1056,7 +1056,7 @@ class XCCClient(IMMClient):
                                                 {'Generate_FFDC_status': 1})
         url = '/ffdc/{0}'.format(result['FileName'])
         if autosuffix and not savefile.endswith('.tzz'):
-            savefile += '.tzz'
+            savefile += '-{0}'.format(result['FileName'])
         fd = webclient.FileDownloader(self.wc, url, savefile)
         fd.start()
         while fd.isAlive():