postgis: get rid of composableDerivation

In this change composableDerivation is removed in favor of
stdenv.mkDerivation.

1 files changed, 1 insertions, 1 deletions

diff --git a/nixos/modules/services/databases/postgresql.nix b/nixos/modules/services/databases/postgresql.nix
index 9b5e3735239f..0dcbfe2e47ac 100644
--- a/nixos/modules/services/databases/postgresql.nix
+++ b/nixos/modules/services/databases/postgresql.nix
@@ -122,7 +122,7 @@ in
       extraPlugins = mkOption {
         type = types.listOf types.path;
         default = [];
-        example = literalExample "[ (pkgs.postgis.override { postgresql = pkgs.postgresql94; }).v_2_1_4 ]";
+        example = literalExample "[ (pkgs.postgis.override { postgresql = pkgs.postgresql94; }) ]";
         description = ''
           When this list contains elements a new store path is created.
           PostgreSQL and the elements are symlinked into it. Then pg_config,