1 files changed, 3 insertions, 1 deletions
diff --git a/bpkg/help.cxx b/bpkg/help.cxx
index 66b68aa..f03ad21 100644
--- a/bpkg/help.cxx
+++ b/bpkg/help.cxx
@@ -51,7 +51,7 @@ namespace bpkg
     o << ""<< endl;
   }
 
-  void
+  int
   help (const help_options&, const string& t, void (*usage) (std::ostream&))
   {
     ostream& o (cout);
@@ -77,5 +77,7 @@ namespace bpkg
     else
       fail << "unknown bpkg command/help topic '" << t << "'" <<
         info << "run 'bpkg help' for more information";
+
+    return 0;
   }
 }