diff --git a/lib.nix b/lib.nix
index 8e80817..f8857a5 100644
--- a/lib.nix
+++ b/lib.nix
@@ -74,7 +74,7 @@ in
               listen_addresses = "localhost";
               port = 5432;
               shared_buffers = "128MB";
-              worker_mem = "4M";
+              work_mem = "4M";
               logging_collector = "off";
 
             }