diff --git a/pkgs/development/haskell-modules/configuration-nix.nix b/pkgs/development/haskell-modules/configuration-nix.nix
index 2d32dbc5a664..6e3c0f042565 100644
--- a/pkgs/development/haskell-modules/configuration-nix.nix
+++ b/pkgs/development/haskell-modules/configuration-nix.nix
@@ -1253,7 +1253,8 @@ builtins.intersectAttrs super {
       pkgs.postgresql
       pkgs.postgresqlTestHook
     ];
-  }) (doJailbreak super.postgresql-simple-migration);
+    jailbreak = true;
+  }) super.postgresql-simple-migration;
 
   postgresql-simple = addTestToolDepends [
     pkgs.postgresql