diff --git a/pkgs/test/haskell/cabalSdist/default.nix b/pkgs/test/haskell/cabalSdist/default.nix
index c0a9d406a503..4432e95ab56e 100644
--- a/pkgs/test/haskell/cabalSdist/default.nix
+++ b/pkgs/test/haskell/cabalSdist/default.nix
@@ -1,7 +1,18 @@
-{ lib, haskellPackages, runCommand }:
+{ lib, haskell, haskellPackages, runCommand }:
 
 let
-  localRaw = haskellPackages.callPackage ./local/generated.nix {};
+  src = lib.fileset.toSource {
+    root = ./local;
+    fileset = lib.fileset.unions [
+      ./local/app
+      ./local/CHANGELOG.md
+      ./local/local.cabal
+    ];
+  };
+  # This prevents the source from depending on the formatting of the ./local/generated.nix file
+  localRaw = haskell.lib.compose.overrideSrc {
+    inherit src;
+  } (haskellPackages.callPackage ./local/generated.nix {});
 in
 lib.recurseIntoAttrs rec {
 
@@ -20,14 +31,14 @@ lib.recurseIntoAttrs rec {
   assumptionLocalHasDirectReference = runCommand "localHasDirectReference" {
     drvPath = builtins.unsafeDiscardOutputDependency localRaw.drvPath;
   } ''
-    grep ${./local} $drvPath >/dev/null
+    grep ${src} $drvPath >/dev/null
     touch $out
   '';
 
   localHasNoDirectReference = runCommand "localHasNoDirectReference" {
     drvPath = builtins.unsafeDiscardOutputDependency localFromCabalSdist.drvPath;
   } ''
-    grep -v ${./local} $drvPath >/dev/null
+    grep -v ${src} $drvPath >/dev/null
     touch $out
   '';
 }