diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 013156b0e16c..7a4dc19d8bc9 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -787,6 +787,9 @@ self: super: {
 
   # Needs pginit to function and pgrep to verify.
   tmp-postgres = overrideCabal super.tmp-postgres (drv: {
+    preCheck = ''
+      export HOME="$TMPDIR"
+    '' + (drv.preCheck or "");
     libraryToolDepends = drv.libraryToolDepends or [] ++ [pkgs.postgresql];
     testToolDepends = drv.testToolDepends or [] ++ [pkgs.procps];
   });
diff --git a/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml b/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
index 8b23f1a87d2e..f7d0066ac3c3 100644
--- a/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
+++ b/pkgs/development/haskell-modules/configuration-hackage2nix/broken.yaml
@@ -4755,7 +4755,6 @@ broken-packages:
   - Titim
   - tkhs
   - tkyprof
-  - tmp-postgres
   - todo
   - tofromxml
   - to-haskell
diff --git a/pkgs/development/haskell-modules/hackage-packages.nix b/pkgs/development/haskell-modules/hackage-packages.nix
index 7979ee486455..697239fb5849 100644
--- a/pkgs/development/haskell-modules/hackage-packages.nix
+++ b/pkgs/development/haskell-modules/hackage-packages.nix
@@ -262697,8 +262697,6 @@ self: {
        ];
        description = "Start and stop a temporary postgres";
        license = lib.licenses.bsd3;
-       hydraPlatforms = lib.platforms.none;
-       broken = true;
      }) {};
 
   "tmpl" = callPackage