diff --git a/scripts/verifyHTTP2.py b/scripts/verifyHTTP2.py
index b1cc541..0fa553d 100755
--- a/scripts/verifyHTTP2.py
+++ b/scripts/verifyHTTP2.py
@@ -12,10 +12,11 @@ def main() -> None:
     parser = argparse.ArgumentParser(description=__doc__)
     parser.add_argument("--image", default="golang:1.25")
     parser.add_argument("--duration", default="30m")
+    parser.add_argument("--timeout", default="35m", help="go test timeout (default: 35m)")
     parser.add_argument("--gomaxprocs", type=int, default=2)
     args = parser.parse_args()
-    if not args.duration or args.gomaxprocs < 1:
-        parser.error("--duration must be non-empty and --gomaxprocs must be positive")
+    if not args.duration or not args.timeout or args.gomaxprocs < 1:
+        parser.error("--duration and --timeout must be non-empty and --gomaxprocs must be positive")
 
     docker = shutil.which("docker")
     if docker is None:
@@ -26,7 +27,7 @@ def main() -> None:
         "-v", f"{root}:/workspace", "-w", "/workspace",
         "-e", "GOWORK=off", "-e", f"GOMAXPROCS={args.gomaxprocs}",
         "-e", f"GO_OMNI_HTTP2_SOAK_DURATION={args.duration}",
-        args.image, "go", "test", "-race", "./transport/http2",
+        args.image, "go", "test", "-race", "-timeout", args.timeout, "./transport/http2",
         "-run", "^TestTLSSoak$", "-count=1",
     ]
     print(f"HTTP/2 Linux soak image: {args.image}", flush=True)