diff --git a/tests/python/contrib/test_ethosu/cascader/test_ethosu_conv2d_matcher.py b/tests/python/contrib/test_ethosu/cascader/test_ethosu_conv2d_matcher.py
index 4da4a1a7c5cb9..79a139594b3ec 100644
--- a/tests/python/contrib/test_ethosu/cascader/test_ethosu_conv2d_matcher.py
+++ b/tests/python/contrib/test_ethosu/cascader/test_ethosu_conv2d_matcher.py
@@ -126,6 +126,7 @@ def test_ethosu_conv2d_matcher(
         clip_min=0,
         clip_max=0,
         upscale="NONE",
+        rounding_mode="TFL",
         ifm_layout=ifm_layout,
         ofm_layout=ofm_layout,
     )