diff --git a/platforms/nuttx/init/kinetis/rc.board_arch_defaults b/platforms/nuttx/init/kinetis/rc.board_arch_defaults
index 1cf9c919db..7a7bbb3db4 100644
--- a/platforms/nuttx/init/kinetis/rc.board_arch_defaults
+++ b/platforms/nuttx/init/kinetis/rc.board_arch_defaults
@@ -4,7 +4,7 @@
 #------------------------------------------------------------------------------
 
 # Multi-EKF (off by default)
-param set-default EKF2_MULTI_IMU 0
+param set-default -s EKF2_MULTI_IMU 0
 param set-default SENS_IMU_MODE 1
 
 set LOGGER_BUF 8
diff --git a/platforms/nuttx/init/stm32/rc.board_arch_defaults b/platforms/nuttx/init/stm32/rc.board_arch_defaults
index cda40b9a40..edef4e1e63 100644
--- a/platforms/nuttx/init/stm32/rc.board_arch_defaults
+++ b/platforms/nuttx/init/stm32/rc.board_arch_defaults
@@ -4,7 +4,7 @@
 #------------------------------------------------------------------------------
 
 # Multi-EKF (off by default)
-param set-default EKF2_MULTI_IMU 0
+param set-default -s EKF2_MULTI_IMU 0
 param set-default SENS_IMU_MODE 1
 
 set LOGGER_BUF 8
diff --git a/platforms/nuttx/init/stm32f7/rc.board_arch_defaults b/platforms/nuttx/init/stm32f7/rc.board_arch_defaults
index 17bae04429..2c71f7470c 100644
--- a/platforms/nuttx/init/stm32f7/rc.board_arch_defaults
+++ b/platforms/nuttx/init/stm32f7/rc.board_arch_defaults
@@ -4,7 +4,7 @@
 #------------------------------------------------------------------------------
 
 # Multi-EKF (across IMUs only)
-param set-default EKF2_MULTI_IMU 3
+param set-default -s EKF2_MULTI_IMU 3
 param set-default SENS_IMU_MODE 0
 
 param set-default -s IMU_GYRO_FFT_EN 1
diff --git a/platforms/nuttx/init/stm32h7/rc.board_arch_defaults b/platforms/nuttx/init/stm32h7/rc.board_arch_defaults
index 31d23de1ec..60979fa61b 100644
--- a/platforms/nuttx/init/stm32h7/rc.board_arch_defaults
+++ b/platforms/nuttx/init/stm32h7/rc.board_arch_defaults
@@ -4,7 +4,7 @@
 #------------------------------------------------------------------------------
 
 # Multi-EKF
-param set-default EKF2_MULTI_IMU 3
+param set-default -s EKF2_MULTI_IMU 3
 param set-default SENS_IMU_MODE 0
 
 param set-default -s IMU_GYRO_FFT_EN 1