diff --git a/posix-configs/SITL/init/test/test_imu_filtering b/posix-configs/SITL/init/test/test_imu_filtering
index f3d548ad15..28a0dde645 100644
--- a/posix-configs/SITL/init/test/test_imu_filtering
+++ b/posix-configs/SITL/init/test/test_imu_filtering
@@ -22,7 +22,7 @@ param set IMU_GYRO_FFT_LEN 512
 # dynamic notches ESC/FFT/both
 #param set IMU_GYRO_DYN_NF 1
 #param set IMU_GYRO_DYN_NF 2
-#param set IMU_GYRO_DYN_NF 3
+param set IMU_GYRO_DYN_NF 3
 
 # test values
 param set IMU_GYRO_CUTOFF 60