diff --git a/pkgs/tools/text/mdbook-admonish/default.nix b/pkgs/tools/text/mdbook-admonish/default.nix
index 1deaf9bc7c2b..381bf8e6b1ad 100644
--- a/pkgs/tools/text/mdbook-admonish/default.nix
+++ b/pkgs/tools/text/mdbook-admonish/default.nix
@@ -19,7 +19,7 @@ rustPlatform.buildRustPackage rec {
     description = "A preprocessor for mdbook to add Material Design admonishments";
     mainProgram = "mdbook-admonish";
     license = licenses.mit;
-    maintainers = with maintainers; [ jmgilman Frostman ];
+    maintainers = with maintainers; [ jmgilman Frostman matthiasbeyer ];
     homepage = "https://github.com/tommilligan/mdbook-admonish";
   };
 }
diff --git a/pkgs/tools/text/mdbook-cmdrun/default.nix b/pkgs/tools/text/mdbook-cmdrun/default.nix
index 05d27d3e3ad5..3d797479c50e 100644
--- a/pkgs/tools/text/mdbook-cmdrun/default.nix
+++ b/pkgs/tools/text/mdbook-cmdrun/default.nix
@@ -22,6 +22,6 @@ rustPlatform.buildRustPackage rec {
     mainProgram = "mdbook-cmdrun";
     homepage = "https://github.com/FauconFan/mdbook-cmdrun";
     license = licenses.mit;
-    maintainers = with maintainers; [ pinpox ];
+    maintainers = with maintainers; [ pinpox matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-d2/default.nix b/pkgs/tools/text/mdbook-d2/default.nix
index afff44b9f473..61176e202020 100644
--- a/pkgs/tools/text/mdbook-d2/default.nix
+++ b/pkgs/tools/text/mdbook-d2/default.nix
@@ -29,6 +29,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/danieleades/mdbook-d2";
     changelog = "https://github.com/danieleades/mdbook-d2/blob/${src.rev}/CHANGELOG.md";
     license = licenses.mit;
-    maintainers = with maintainers; [ blaggacao ];
+    maintainers = with maintainers; [ blaggacao matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-emojicodes/default.nix b/pkgs/tools/text/mdbook-emojicodes/default.nix
index 21c8e48468a2..d57ba39b803c 100644
--- a/pkgs/tools/text/mdbook-emojicodes/default.nix
+++ b/pkgs/tools/text/mdbook-emojicodes/default.nix
@@ -28,6 +28,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/blyxyas/mdbook-emojicodes";
     changelog = "https://github.com/blyxyas/mdbook-emojicodes/releases/tag/${version}";
     license = licenses.mit;
-    maintainers = with maintainers; [ blaggacao ];
+    maintainers = with maintainers; [ blaggacao matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-epub/default.nix b/pkgs/tools/text/mdbook-epub/default.nix
index 16e3bff73443..830d6f92a8ad 100644
--- a/pkgs/tools/text/mdbook-epub/default.nix
+++ b/pkgs/tools/text/mdbook-epub/default.nix
@@ -37,6 +37,6 @@ in rustPlatform.buildRustPackage {
     mainProgram = "mdbook-epub";
     homepage = "https://michael-f-bryan.github.io/mdbook-epub";
     license = licenses.mpl20;
-    maintainers = with maintainers; [ yuu ];
+    maintainers = with maintainers; [ yuu matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-footnote/default.nix b/pkgs/tools/text/mdbook-footnote/default.nix
index cc140a5b5d83..01777669c4af 100644
--- a/pkgs/tools/text/mdbook-footnote/default.nix
+++ b/pkgs/tools/text/mdbook-footnote/default.nix
@@ -24,6 +24,6 @@ rustPlatform.buildRustPackage rec {
     mainProgram = "mdbook-footnote";
     homepage = "https://github.com/daviddrysdale/mdbook-footnote";
     license = licenses.asl20;
-    maintainers = with maintainers; [ brianmcgillion ];
+    maintainers = with maintainers; [ brianmcgillion matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-graphviz/default.nix b/pkgs/tools/text/mdbook-graphviz/default.nix
index 060fd5871d1b..43171c92dc96 100644
--- a/pkgs/tools/text/mdbook-graphviz/default.nix
+++ b/pkgs/tools/text/mdbook-graphviz/default.nix
@@ -23,6 +23,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/dylanowen/mdbook-graphviz";
     changelog = "https://github.com/dylanowen/mdbook-graphviz/releases/tag/v${version}";
     license = [ licenses.mpl20 ];
-    maintainers = with maintainers; [ lovesegfault ];
+    maintainers = with maintainers; [ lovesegfault matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-i18n-helpers/default.nix b/pkgs/tools/text/mdbook-i18n-helpers/default.nix
index e00103b2c4f3..e38da146b1fa 100644
--- a/pkgs/tools/text/mdbook-i18n-helpers/default.nix
+++ b/pkgs/tools/text/mdbook-i18n-helpers/default.nix
@@ -22,6 +22,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/google/mdbook-i18n-helpers";
     changelog = "https://github.com/google/mdbook-i18n-helpers/releases/tag/${version}";
     license = licenses.asl20;
-    maintainers = with maintainers; [ teutat3s ];
+    maintainers = with maintainers; [ teutat3s matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-katex/default.nix b/pkgs/tools/text/mdbook-katex/default.nix
index cd9534761966..84e04e8e5669 100644
--- a/pkgs/tools/text/mdbook-katex/default.nix
+++ b/pkgs/tools/text/mdbook-katex/default.nix
@@ -18,6 +18,6 @@ rustPlatform.buildRustPackage rec {
     mainProgram = "mdbook-katex";
     homepage = "https://github.com/lzanini/${pname}";
     license = [ licenses.mit ];
-    maintainers = with maintainers; [ lovesegfault ];
+    maintainers = with maintainers; [ lovesegfault matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-kroki-preprocessor/default.nix b/pkgs/tools/text/mdbook-kroki-preprocessor/default.nix
index d419d8b0c116..e69c8185e3c3 100644
--- a/pkgs/tools/text/mdbook-kroki-preprocessor/default.nix
+++ b/pkgs/tools/text/mdbook-kroki-preprocessor/default.nix
@@ -36,6 +36,6 @@ rustPlatform.buildRustPackage rec {
     mainProgram = "mdbook-kroki-preprocessor";
     homepage = "https://github.com/joelcourtney/mdbook-kroki-preprocessor";
     license = licenses.gpl3Only;
-    maintainers = with maintainers; [ blaggacao ];
+    maintainers = with maintainers; [ blaggacao matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-linkcheck/default.nix b/pkgs/tools/text/mdbook-linkcheck/default.nix
index d90b536edc86..b8d19d01e763 100644
--- a/pkgs/tools/text/mdbook-linkcheck/default.nix
+++ b/pkgs/tools/text/mdbook-linkcheck/default.nix
@@ -29,6 +29,6 @@ rustPlatform.buildRustPackage rec {
     mainProgram = "mdbook-linkcheck";
     homepage = "https://github.com/Michael-F-Bryan/mdbook-linkcheck";
     license = licenses.mit;
-    maintainers = with maintainers; [ zhaofengli ];
+    maintainers = with maintainers; [ zhaofengli matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-mermaid/default.nix b/pkgs/tools/text/mdbook-mermaid/default.nix
index b69dd103917d..2dafb13d508c 100644
--- a/pkgs/tools/text/mdbook-mermaid/default.nix
+++ b/pkgs/tools/text/mdbook-mermaid/default.nix
@@ -28,6 +28,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/badboy/mdbook-mermaid";
     changelog = "https://github.com/badboy/mdbook-mermaid/blob/v${version}/CHANGELOG.md";
     license = licenses.mpl20;
-    maintainers = with maintainers; [ xrelkd ];
+    maintainers = with maintainers; [ xrelkd matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-pagetoc/default.nix b/pkgs/tools/text/mdbook-pagetoc/default.nix
index 2cd4afee9616..eaeecf764809 100644
--- a/pkgs/tools/text/mdbook-pagetoc/default.nix
+++ b/pkgs/tools/text/mdbook-pagetoc/default.nix
@@ -18,6 +18,6 @@ rustPlatform.buildRustPackage rec {
     mainProgram = "mdbook-pagetoc";
     homepage = "https://github.com/slowsage/mdbook-pagetoc";
     license = licenses.mit;
-    maintainers = with maintainers; [ blaggacao ];
+    maintainers = with maintainers; [ blaggacao matthiasbeyer ];
   };
 }
diff --git a/pkgs/tools/text/mdbook-pdf/default.nix b/pkgs/tools/text/mdbook-pdf/default.nix
index e0c63f595db1..0b3b0bfbc860 100644
--- a/pkgs/tools/text/mdbook-pdf/default.nix
+++ b/pkgs/tools/text/mdbook-pdf/default.nix
@@ -48,6 +48,6 @@ rustPlatform.buildRustPackage rec {
     homepage = "https://github.com/HollowMan6/mdbook-pdf";
     changelog = "https://github.com/HollowMan6/mdbook-pdf/releases/tag/v${version}";
     license = licenses.gpl3Plus;
-    maintainers = with maintainers; [ hollowman6 ];
+    maintainers = with maintainers; [ hollowman6 matthiasbeyer ];
   };
 }
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 ];
   };
 }