diff --git a/selfdrive/controls/lib/model_parser.py b/selfdrive/controls/lib/model_parser.py
index 0b4bb241dbf342..9b28c66bb9da48 100644
--- a/selfdrive/controls/lib/model_parser.py
+++ b/selfdrive/controls/lib/model_parser.py
@@ -44,7 +44,7 @@ def update(self, v_ego, md):
     self.lane_width_certainty += 0.05 * (lr_prob - self.lane_width_certainty)
     current_lane_width = abs(l_poly[3] - r_poly[3])
     self.lane_width_estimate += 0.005 * (current_lane_width - self.lane_width_estimate)
-    speed_lane_width = interp(v_ego, [0., 31.], [3., 3.8])
+    speed_lane_width = interp(v_ego, [0., 31.], [2.8, 3.5])
     self.lane_width = self.lane_width_certainty * self.lane_width_estimate + \
                       (1 - self.lane_width_certainty) * speed_lane_width