--- a/tests/test-completion.t	Fri Jul 13 03:05:30 2018 +0200
+++ b/tests/test-completion.t	Fri Dec 21 13:17:58 2018 +0100
@@ -299,7 +299,7 @@
   debuguigetpass: prompt
   debuguiprompt: prompt
   debugupdatecaches: 
-  debugupgraderepo: optimize, run
+  debugupgraderepo: optimize, run, backup
   debugwalk: include, exclude
   debugwhyunstable: 
   debugwireargs: three, four, five, ssh, remotecmd, insecure