diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 75452d43570c..6b1c13a598ac 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -10145,6 +10145,11 @@
     githubId = 9469313;
     name = "Gregoire Martinache";
   };
+  mgregson = {
+    github = "mgregson";
+    githubId = 333572;
+    name = "Michael Gregson";
+  };
   mgttlinger = {
     email = "megoettlinger@gmail.com";
     github = "mgttlinger";
diff --git a/pkgs/applications/science/logic/tlaplus/default.nix b/pkgs/applications/science/logic/tlaplus/default.nix
index 5004e42a43ff..2d2542a607a5 100644
--- a/pkgs/applications/science/logic/tlaplus/default.nix
+++ b/pkgs/applications/science/logic/tlaplus/default.nix
@@ -32,6 +32,6 @@ stdenv.mkDerivation rec {
     sourceProvenance = with lib.sourceTypes; [ binaryBytecode ];
     license     = lib.licenses.mit;
     platforms   = lib.platforms.unix;
-    maintainers = with lib.maintainers; [ florentc thoughtpolice ];
+    maintainers = with lib.maintainers; [ florentc thoughtpolice mgregson ];
   };
 }