diff --git a/fediversity/default.nix b/fediversity/default.nix
index 5ff0883..b4a3172 100644
--- a/fediversity/default.nix
+++ b/fediversity/default.nix
@@ -102,7 +102,7 @@ in {
             };
             mastodon.domain = mkOption {
               type = types.str;
-              default = "mastdodon.${config.fediversity.domain}";
+              default = "mastodon.${config.fediversity.domain}";
             };
             peertube.domain = mkOption {
               type = types.str;