diff --git a/test_runner/performance/test_lfc_prefetch.py b/test_runner/performance/test_lfc_prefetch.py
index ed9624a0aa..72070a6f2f 100644
--- a/test_runner/performance/test_lfc_prefetch.py
+++ b/test_runner/performance/test_lfc_prefetch.py
@@ -14,7 +14,7 @@ from fixtures.utils import USE_LFC
 @pytest.mark.parametrize("n_readers", [1, 2, 4, 8])
 @pytest.mark.parametrize("n_writers", [0, 1, 2, 4, 8])
 @pytest.mark.skipif(not USE_LFC, reason="LFC is disabled, skipping")
-def test_lfc_prefetch(neon_simple_env: NeonEnv: n_readers: int, n_writers: int):
+def test_lfc_prefetch(neon_simple_env: NeonEnv, n_readers: int, n_writers: int):
     """
     Test resizing the Local File Cache
     """