diff --git a/pkgs/development/haskell-modules/configuration-common.nix b/pkgs/development/haskell-modules/configuration-common.nix
index 3a3282d2ab73..468961fc26d4 100644
--- a/pkgs/development/haskell-modules/configuration-common.nix
+++ b/pkgs/development/haskell-modules/configuration-common.nix
@@ -1928,9 +1928,7 @@ EOT
   # Disable flaky tests
   # https://github.com/DavidEichmann/alpaca-netcode/issues/2
   alpaca-netcode = overrideCabal super.alpaca-netcode {
-    # use testTarget to also pass some flags to the test suite.
-    # TODO: We should add proper support for this to the builder.
-    testTarget = "test --test-options='-p \"!/[NOCI]/\"'";
+    testFlags = [ "--pattern" "!/[NOCI]/" ];
   };
 
   # Tests require to run a binary which isn't built
@@ -1941,8 +1939,7 @@ EOT
   # this, run tests with only a single job.
   # https://github.com/vmchale/libarchive/issues/20
   libarchive = overrideCabal super.libarchive {
-    # TODO: We should add proper support for this to the builder.
-    testTarget = "libarchive-test --test-options='-j1'";
+    testFlags = [ "-j1" ];
   };
 
   # unrestrict bounds for hashable and semigroups
diff --git a/pkgs/development/haskell-modules/generic-builder.nix b/pkgs/development/haskell-modules/generic-builder.nix
index b91da1669527..2b2f23e20eaf 100644
--- a/pkgs/development/haskell-modules/generic-builder.nix
+++ b/pkgs/development/haskell-modules/generic-builder.nix
@@ -58,7 +58,7 @@ in
 , pkg-configDepends ? [], libraryPkgconfigDepends ? [], executablePkgconfigDepends ? [], testPkgconfigDepends ? [], benchmarkPkgconfigDepends ? []
 , testDepends ? [], testHaskellDepends ? [], testSystemDepends ? [], testFrameworkDepends ? []
 , benchmarkDepends ? [], benchmarkHaskellDepends ? [], benchmarkSystemDepends ? [], benchmarkFrameworkDepends ? []
-, testTarget ? ""
+, testTarget ? "", testFlags ? []
 , broken ? false
 , preCompileBuildDriver ? null, postCompileBuildDriver ? null
 , preUnpack ? null, postUnpack ? null
@@ -454,9 +454,13 @@ stdenv.mkDerivation ({
 
   inherit doCheck;
 
+  # Run test suite(s) and pass `checkFlags` as well as `checkFlagsArray`.
+  # `testFlags` are added to `checkFlagsArray` each prefixed with
+  # `--test-option`, so Cabal passes it to the underlying test suite binary.
   checkPhase = ''
     runHook preCheck
-    ${setupCommand} test ${testTarget}
+    checkFlagsArray+=(${lib.escapeShellArgs (builtins.map (opt: "--test-option=${opt}") testFlags)})
+    ${setupCommand} test ${testTarget} $checkFlags ''${checkFlagsArray:+"''${checkFlagsArray[@]}"}
     runHook postCheck
   '';