Fix assertion failure in tab completion for --option

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libmain/common-args.cc b/src/libmain/common-args.cc
index 9151a0344..3e4e475e5 100644
--- a/src/libmain/common-args.cc
+++ b/src/libmain/common-args.cc
@@ -44,7 +44,7 @@ MixCommonArgs::MixCommonArgs(const string & programName)
                 globalConfig.getSettings(settings);
                 for (auto & s : settings)
                     if (hasPrefix(s.first, prefix))
-                        completions->add(s.first, s.second.description);
+                        completions->add(s.first, fmt("Set the `%s` setting.", s.first));
             }
         }
     });