diff --git a/hosts/tadpole/modules/gitea/default.nix b/hosts/tadpole/modules/gitea/default.nix
index 671b3d5..65a52e8 100644
--- a/hosts/tadpole/modules/gitea/default.nix
+++ b/hosts/tadpole/modules/gitea/default.nix
@@ -67,6 +67,10 @@ in
           HTTP_PORT = 3001;
         };
 
+        oauth2 = {
+          JWT_CLAIM_ISSUER = "https://${gitDomain}/";
+        };
+
         database = {
           type = "sqlite3";
           passwordFile = config.age.secrets.gitea-dbpassword.path;