diff --git a/flake.nix b/flake.nix
index b9058f861..985a4add6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -234,7 +234,7 @@
                   ensureDBOwnership = true;
                 }
               ];
-              extraPlugins = with config.services.postgresql.package.pkgs; [ postgis ];
+              extensions = with config.services.postgresql.package.pkgs; [ postgis ];
               identMap = ''
                 map-mobilizon ${cfg.user} mobilizon
               '';