3 files changed, 17 insertions, 5 deletions
diff --git a/src/nix/main.cc b/src/nix/main.cc
index ea6838cd76c9..88a602b84813 100644
--- a/src/nix/main.cc
+++ b/src/nix/main.cc
@@ -33,7 +33,9 @@ struct NixArgs : virtual MultiCommand, virtual MixCommonArgs
 
         mkFlag(0, "version", "show version information", std::bind(printVersion, programName));
 
-        settings.convertToArgs(*this);
+        std::string cat = "config";
+        settings.convertToArgs(*this, cat);
+        hiddenCategories.insert(cat);
     }
 
     void printFlags(std::ostream & out) override
diff --git a/src/nix/sigs.cc b/src/nix/sigs.cc
index 3dd03771619f..0e3eb9b694b4 100644
--- a/src/nix/sigs.cc
+++ b/src/nix/sigs.cc
@@ -13,8 +13,13 @@ struct CmdCopySigs : StorePathsCommand
 
     CmdCopySigs()
     {
-        mkFlag('s', "substituter", {"store-uri"}, "use signatures from specified store", 1,
-            [&](Strings ss) { substituterUris.push_back(ss.front()); });
+        mkFlag()
+            .longName("substituter")
+            .shortName('s')
+            .labels({"store-uri"})
+            .description("use signatures from specified store")
+            .arity(1)
+            .handler([&](Strings ss) { substituterUris.push_back(ss.front()); });
     }
 
     std::string name() override
diff --git a/src/nix/verify.cc b/src/nix/verify.cc
index 8facb4bef8a2..18533e6066cd 100644
--- a/src/nix/verify.cc
+++ b/src/nix/verify.cc
@@ -19,8 +19,13 @@ struct CmdVerify : StorePathsCommand
     {
         mkFlag(0, "no-contents", "do not verify the contents of each store path", &noContents);
         mkFlag(0, "no-trust", "do not verify whether each store path is trusted", &noTrust);
-        mkFlag('s', "substituter", {"store-uri"}, "use signatures from specified store", 1,
-            [&](Strings ss) { substituterUris.push_back(ss.front()); });
+        mkFlag()
+            .longName("substituter")
+            .shortName('s')
+            .labels({"store-uri"})
+            .description("use signatures from specified store")
+            .arity(1)
+            .handler([&](Strings ss) { substituterUris.push_back(ss.front()); });
         mkIntFlag('n', "sigs-needed", "require that each path has at least N valid signatures", &sigsNeeded);
     }