diff --git a/lib.nix b/lib.nix
index f8857a5..7f3ffa9 100644
--- a/lib.nix
+++ b/lib.nix
@@ -74,8 +74,8 @@ in
               listen_addresses = "localhost";
               port = 5432;
               shared_buffers = "128MB";
-              work_mem = "4M";
-              logging_collector = "off";
+              work_mem = "4MB";
+              logging_collector = false;
 
             }
           else