diff --git a/pkgs/tools/text/mdbook-plantuml/default.nix b/pkgs/tools/text/mdbook-plantuml/default.nix
index e07bd812cec9..e5ee827d816e 100644
--- a/pkgs/tools/text/mdbook-plantuml/default.nix
+++ b/pkgs/tools/text/mdbook-plantuml/default.nix
@@ -40,6 +40,6 @@ rustPlatform.buildRustPackage rec {
     mainProgram = "mdbook-plantuml";
     homepage = "https://github.com/sytsereitsma/mdbook-plantuml";
     license = [ licenses.mit ];
-    maintainers = with maintainers; [ jcouyang ];
+    maintainers = with maintainers; [ jcouyang matthiasbeyer ];
   };
 }