diff --git a/src/modules/ekf2/EKF/ekf_helper.cpp b/src/modules/ekf2/EKF/ekf_helper.cpp
index f8d356da80..c3c78453df 100644
--- a/src/modules/ekf2/EKF/ekf_helper.cpp
+++ b/src/modules/ekf2/EKF/ekf_helper.cpp
@@ -1188,16 +1188,6 @@ void Ekf::stopAuxVelFusion()
 	resetEstimatorAidStatus(_aid_src_aux_vel);
 }
 
-void Ekf::stopFlowFusion()
-{
-	if (_control_status.flags.opt_flow) {
-		ECL_INFO("stopping optical flow fusion");
-		_control_status.flags.opt_flow = false;
-
-		resetEstimatorAidStatus(_aid_src_optical_flow);
-	}
-}
-
 void Ekf::resetQuatStateYaw(float yaw, float yaw_variance)
 {
 	// save a copy of the quaternion state for later use in calculating the amount of reset change
diff --git a/src/modules/ekf2/EKF/optical_flow_control.cpp b/src/modules/ekf2/EKF/optical_flow_control.cpp
index 2d08ebd1c5..d143cb4684 100644
--- a/src/modules/ekf2/EKF/optical_flow_control.cpp
+++ b/src/modules/ekf2/EKF/optical_flow_control.cpp
@@ -258,3 +258,13 @@ void Ekf::resetOnGroundMotionForOpticalFlowChecks()
 	_time_bad_motion_us = 0;
 	_time_good_motion_us = _time_delayed_us;
 }
+
+void Ekf::stopFlowFusion()
+{
+	if (_control_status.flags.opt_flow) {
+		ECL_INFO("stopping optical flow fusion");
+		_control_status.flags.opt_flow = false;
+
+		resetEstimatorAidStatus(_aid_src_optical_flow);
+	}
+}