diff --git a/src/modules/ekf2/EKF2.cpp b/src/modules/ekf2/EKF2.cpp
index 4a3ddfc32f..98e2be7828 100644
--- a/src/modules/ekf2/EKF2.cpp
+++ b/src/modules/ekf2/EKF2.cpp
@@ -35,7 +35,6 @@
 #include "EKF2.hpp"
 
 using namespace time_literals;
-using math::constrain;
 using matrix::Eulerf;
 using matrix::Quatf;
 using matrix::Vector3f;
diff --git a/src/modules/fw_mode_manager/FixedWingModeManager.cpp b/src/modules/fw_mode_manager/FixedWingModeManager.cpp
index 0ac0d36264..1f752608ca 100644
--- a/src/modules/fw_mode_manager/FixedWingModeManager.cpp
+++ b/src/modules/fw_mode_manager/FixedWingModeManager.cpp
@@ -36,9 +36,6 @@
 #include <px4_platform_common/events.h>
 #include <uORB/topics/longitudinal_control_configuration.h>
 
-using math::constrain;
-using math::max;
-using math::min;
 using math::radians;
 
 using matrix::Dcmf;
diff --git a/src/modules/fw_rate_control/FixedwingRateControl.cpp b/src/modules/fw_rate_control/FixedwingRateControl.cpp
index 3ae3272cfa..993d68bdd0 100644
--- a/src/modules/fw_rate_control/FixedwingRateControl.cpp
+++ b/src/modules/fw_rate_control/FixedwingRateControl.cpp
@@ -36,7 +36,6 @@
 using namespace time_literals;
 using namespace matrix;
 
-using math::constrain;
 using math::interpolate;
 using math::radians;