diff --git a/modules/nixos/services/postgresql/default.nix b/modules/nixos/services/postgresql/default.nix
index bbe46d4..3dcf6d1 100644
--- a/modules/nixos/services/postgresql/default.nix
+++ b/modules/nixos/services/postgresql/default.nix
@@ -27,11 +27,11 @@ in
 
           oldPackage = if pgCfg.enableJIT then pgCfg.package.withJIT else pgCfg.package;
           oldData = pgCfg.dataDir;
-          oldBin = "${if pgCfg.extraPlugins == [] then oldPackage else oldPackage.withPackages pgCfg.extraPlugins}/bin";
+          oldBin = "${if pgCfg.extensions == [] then oldPackage else oldPackage.withPackages pgCfg.extensions}/bin";
 
           newPackage = if pgCfg.enableJIT then newPackage'.withJIT else newPackage';
           newData = "/var/lib/postgresql/${newPackage.psqlSchema}";
-          newBin = "${if pgCfg.extraPlugins == [] then newPackage else newPackage.withPackages pgCfg.extraPlugins}/bin";
+          newBin = "${if pgCfg.extensions == [] then newPackage else newPackage.withPackages pgCfg.extensions}/bin";
         in
         [
           (pkgs.writeScriptBin "upgrade-pg-cluster" ''