diff --git a/pkgs/build-support/node/build-npm-package/default.nix b/pkgs/build-support/node/build-npm-package/default.nix
index 52b4f5a30e2a..372124829b09 100644
--- a/pkgs/build-support/node/build-npm-package/default.nix
+++ b/pkgs/build-support/node/build-npm-package/default.nix
@@ -13,6 +13,7 @@
 , prePatch ? ""
 , patches ? [ ]
 , postPatch ? ""
+, patchFlags ? []
 , nativeBuildInputs ? [ ]
 , buildInputs ? [ ]
   # The output hash of the dependencies for this project.
@@ -45,7 +46,7 @@
 , npmWorkspace ? null
 , nodejs ? topLevelArgs.nodejs
 , npmDeps ?  fetchNpmDeps {
-  inherit forceGitDeps forceEmptyCache src srcs sourceRoot prePatch patches postPatch;
+  inherit forceGitDeps forceEmptyCache src srcs sourceRoot prePatch patches postPatch patchFlags;
   name = "${name}-npm-deps";
   hash = npmDepsHash;
 }