diff --git a/src/modules/ekf2/ekf2_params.c b/src/modules/ekf2/ekf2_params.c
index 096d7bb023..8af017335d 100644
--- a/src/modules/ekf2/ekf2_params.c
+++ b/src/modules/ekf2/ekf2_params.c
@@ -386,6 +386,16 @@ PARAM_DEFINE_FLOAT(EKF2_MAG_NOISE, 5.0e-2f);
  */
 PARAM_DEFINE_FLOAT(EKF2_EAS_NOISE, 1.4f);
 
+/**
+ * Noise for syntetic sideslip fusion.
+ *
+ * @group EKF2
+ * @min 0.5
+ * @max 5.0
+ * @unit m/s
+ * @decimal 1
+ */
+ PARAM_DEFINE_FLOAT(EKF2_BETA_NOISE, 5.0f);
 /**
  * Magnetic declination
  *