diff --git a/.github/CODEOWNERS b/.github/CODEOWNERS
index b68e8436fe3..b15d89219f4 100644
--- a/.github/CODEOWNERS
+++ b/.github/CODEOWNERS
@@ -94,6 +94,10 @@
 /pkgs/applications/science/math/R   @peti
 /pkgs/development/r-modules         @peti
 
+# Ruby
+/pkgs/development/interpreters/ruby @marsam
+/pkgs/development/ruby-modules      @marsam
+
 # Rust
 /pkgs/development/compilers/rust @Mic92 @LnL7 @zowoq
 /pkgs/build-support/rust @andir @danieldk @zowoq
@@ -135,7 +139,7 @@
 /pkgs/development/libraries/qt-5 @ttuegel
 
 # PostgreSQL and related stuff
-/pkgs/servers/sql/postgresql @thoughtpolice
+/pkgs/servers/sql/postgresql @thoughtpolice @marsam
 /nixos/modules/services/databases/postgresql.xml @thoughtpolice
 /nixos/modules/services/databases/postgresql.nix @thoughtpolice
 /nixos/tests/postgresql.nix @thoughtpolice
diff --git a/pkgs/development/ruby-modules/bundix/default.nix b/pkgs/development/ruby-modules/bundix/default.nix
index 4eb06f76aba..17f5d6553f6 100644
--- a/pkgs/development/ruby-modules/bundix/default.nix
+++ b/pkgs/development/ruby-modules/bundix/default.nix
@@ -38,7 +38,7 @@ buildRubyGem rec {
     '';
     homepage = "https://github.com/manveru/bundix";
     license = "MIT";
-    maintainers = with lib.maintainers; [ manveru zimbatm ];
+    maintainers = with lib.maintainers; [ manveru marsam zimbatm ];
     platforms = lib.platforms.all;
   };
 }