diff --git a/system/nixos/postgresql.nix b/system/nixos/postgresql.nix
index 2e8ad7d..649f330 100644
--- a/system/nixos/postgresql.nix
+++ b/system/nixos/postgresql.nix
@@ -6,7 +6,7 @@
     package = pkgs.postgresql_16_jit;
     enableJIT = true;
 
-    extraPlugins = ps: with ps; [
+    extensions = ps: with ps; [
       pgroonga
     ];