diff --git a/src/drivers/px4fmu/px4fmu_params.c b/src/drivers/px4fmu/px4fmu_params.c
deleted file mode 100644
index 30f2867c5a..0000000000
--- a/src/drivers/px4fmu/px4fmu_params.c
+++ /dev/null
@@ -1,52 +0,0 @@
-/****************************************************************************
- *
- *   Copyright (c) 2015-2019 PX4 Development Team. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in
- *    the documentation and/or other materials provided with the
- *    distribution.
- * 3. Neither the name PX4 nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
- * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
- * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
- * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
- * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- *
- ****************************************************************************/
-
-/**
- * Motor Ordering
- *
- * Determines the motor ordering. This can be used for example in combination with
- * a 4-in-1 ESC that assumes a motor ordering which is different from PX4.
- *
- * ONLY supported for Quads.
- * ONLY supported for fmu output (Pixracer or Omnibus F4).
- *
- * When changing this, make sure to test the motor response without props first.
- *
- * @value 0 PX4
- * @value 1 Betaflight / Cleanflight
- *
- * @min 0
- * @max 1
- * @group PWM Outputs
- */
-PARAM_DEFINE_INT32(MOT_ORDERING, 0);
diff --git a/src/lib/mixer_module/params.c b/src/lib/mixer_module/params.c
index 26acd17694..040c77b74b 100644
--- a/src/lib/mixer_module/params.c
+++ b/src/lib/mixer_module/params.c
@@ -13,6 +13,23 @@
  * @value 0 Disabled
  * @value 1 Roll/Pitch
  * @value 2 Roll/Pitch/Yaw
- * @group Multicopter Attitude Control
+ * @group Mixer Output
  */
 PARAM_DEFINE_INT32(MC_AIRMODE, 0);
+
+/**
+ * Motor Ordering
+ *
+ * Determines the motor ordering. This can be used for example in combination with
+ * a 4-in-1 ESC that assumes a motor ordering which is different from PX4.
+ *
+ * ONLY supported for Quads.
+ *
+ * When changing this, make sure to test the motor response without props first.
+ *
+ * @value 0 PX4
+ * @value 1 Betaflight / Cleanflight
+ *
+ * @group Mixer Output
+ */
+PARAM_DEFINE_INT32(MOT_ORDERING, 0);