diff --git a/maintainers/maintainer-list.nix b/maintainers/maintainer-list.nix
index 24c6fe7bbae9..0de9af111070 100644
--- a/maintainers/maintainer-list.nix
+++ b/maintainers/maintainer-list.nix
@@ -3663,6 +3663,12 @@
     github = "Dettorer";
     githubId = 2761682;
   };
+  developer-guy = {
+    name = "Batuhan Apaydın";
+    email = "developerguyn@gmail.com";
+    github = "developer-guy";
+    githubId = 16693043;
+  };
   devhell = {
     email = ''"^"@regexmail.net'';
     github = "devhell";
diff --git a/pkgs/tools/security/cosign/default.nix b/pkgs/tools/security/cosign/default.nix
index 8b326d5163ce..2fcde94f9003 100644
--- a/pkgs/tools/security/cosign/default.nix
+++ b/pkgs/tools/security/cosign/default.nix
@@ -72,6 +72,6 @@ buildGoModule rec {
     changelog = "https://github.com/sigstore/cosign/releases/tag/v${version}";
     description = "Container Signing CLI with support for ephemeral keys and Sigstore signing";
     license = licenses.asl20;
-    maintainers = with maintainers; [ lesuisse jk ];
+    maintainers = with maintainers; [ lesuisse jk developer-guy ];
   };
 }