diff --git a/toolchains/workspace-pnpm/run_npm_test.py b/toolchains/workspace-pnpm/run_npm_test.py
index df553605ea..1c7714db0d 100644
--- a/toolchains/workspace-pnpm/run_npm_test.py
+++ b/toolchains/workspace-pnpm/run_npm_test.py
@@ -50,10 +50,14 @@ def merge_env_from_file(file_path):
     )
 
     args = parser.parse_args()
+
+    env = merge_env_from_file(args.env_file)
+
     bin_args = args.args[1:] # ignore '--' separator
+    if env.get("TEST"):
+        bin_args.append(env.get("TEST"))
     cmd = [os.path.abspath(args.bin), *bin_args]
 
-    env = merge_env_from_file(args.env_file)
     exit_code = subprocess.call(cmd, cwd=args.cwd, env=env)
 
     sys.exit(exit_code)