diff --git a/pkgs/servers/sql/postgresql/ext/timescaledb.nix b/pkgs/servers/sql/postgresql/ext/timescaledb.nix
index 0152be513915..349732a40010 100644
--- a/pkgs/servers/sql/postgresql/ext/timescaledb.nix
+++ b/pkgs/servers/sql/postgresql/ext/timescaledb.nix
@@ -53,7 +53,7 @@ postgresqlBuildExtension (finalAttrs: {
     inherit (finalAttrs) finalPackage;
     withPackages = [ "timescaledb_toolkit" ];
     postgresqlExtraSettings = ''
-      shared_preload_libraries='timescaledb,timescaledb_toolkit'
+      shared_preload_libraries='timescaledb'
     '';
     sql = ''
       CREATE EXTENSION timescaledb;