diff --git a/pkgs/build-support/node/fetch-yarn-deps/default.nix b/pkgs/build-support/node/fetch-yarn-deps/default.nix
index 06c82c8d8e2b..e837f7457d17 100644
--- a/pkgs/build-support/node/fetch-yarn-deps/default.nix
+++ b/pkgs/build-support/node/fetch-yarn-deps/default.nix
@@ -64,6 +64,7 @@ in {
 
       nativeBuildInputs = [ prefetch-yarn-deps cacert ];
       GIT_SSL_CAINFO = "${cacert}/etc/ssl/certs/ca-bundle.crt";
+      NODE_EXTRA_CA_CERTS = "${cacert}/etc/ssl/certs/ca-bundle.crt";
 
       buildPhase = ''
         runHook preBuild