diff --git a/tests/stubtest_stdlib.py b/tests/stubtest_stdlib.py
index 385e0ef45..6caf22cd1 100755
--- a/tests/stubtest_stdlib.py
+++ b/tests/stubtest_stdlib.py
@@ -18,8 +18,6 @@ def run_stubtest(typeshed_dir: Path) -> int:
     platform_allowlist = "{}.txt".format(sys.platform)
     combined_allowlist = "{}-py{}{}.txt".format(sys.platform, sys.version_info.major, sys.version_info.minor)
 
-    ignore_unused_allowlist = "--ignore-unused-allowlist" in sys.argv[1:]
-
     cmd = [
         sys.executable,
         "-m",
@@ -32,8 +30,6 @@ def run_stubtest(typeshed_dir: Path) -> int:
         "--allowlist",
         str(allowlist_dir / version_allowlist),
     ]
-    if ignore_unused_allowlist:
-        cmd += ["--ignore-unused-allowlist"]
     if (allowlist_dir / platform_allowlist).exists():
         cmd += ["--allowlist", str(allowlist_dir / platform_allowlist)]
     if (allowlist_dir / combined_allowlist).exists():