diff --git a/boards/arm/stm32/nucleo-f446re/configs/can/defconfig b/boards/arm/stm32/nucleo-f446re/configs/can/defconfig
index 6db204f635c..1e8762e99bb 100644
--- a/boards/arm/stm32/nucleo-f446re/configs/can/defconfig
+++ b/boards/arm/stm32/nucleo-f446re/configs/can/defconfig
@@ -55,5 +55,4 @@ CONFIG_STM32_PWR=y
 CONFIG_STM32_USART2=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_TASK_NAME_SIZE=0
-CONFIG_TESTING_OSTEST=y
 CONFIG_USART2_SERIAL_CONSOLE=y
diff --git a/boards/arm/stm32/nucleo-f446re/configs/dac/defconfig b/boards/arm/stm32/nucleo-f446re/configs/dac/defconfig
index d65d37d0d3b..219c638ce80 100644
--- a/boards/arm/stm32/nucleo-f446re/configs/dac/defconfig
+++ b/boards/arm/stm32/nucleo-f446re/configs/dac/defconfig
@@ -53,5 +53,4 @@ CONFIG_STM32_PWR=y
 CONFIG_STM32_USART2=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_TASK_NAME_SIZE=0
-CONFIG_TESTING_OSTEST=y
 CONFIG_USART2_SERIAL_CONSOLE=y
diff --git a/boards/arm/stm32/nucleo-f446re/configs/gpio/defconfig b/boards/arm/stm32/nucleo-f446re/configs/gpio/defconfig
index c8e681d1ce7..eb53d2b195f 100644
--- a/boards/arm/stm32/nucleo-f446re/configs/gpio/defconfig
+++ b/boards/arm/stm32/nucleo-f446re/configs/gpio/defconfig
@@ -49,5 +49,4 @@ CONFIG_STM32_PWR=y
 CONFIG_STM32_USART2=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_TASK_NAME_SIZE=0
-CONFIG_TESTING_OSTEST=y
 CONFIG_USART2_SERIAL_CONSOLE=y
diff --git a/boards/arm/stm32/nucleo-f446re/configs/lcd/defconfig b/boards/arm/stm32/nucleo-f446re/configs/lcd/defconfig
index 30f459fa910..301a6929b42 100644
--- a/boards/arm/stm32/nucleo-f446re/configs/lcd/defconfig
+++ b/boards/arm/stm32/nucleo-f446re/configs/lcd/defconfig
@@ -55,6 +55,5 @@ CONFIG_STM32_SPI3=y
 CONFIG_STM32_USART2=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_TASK_NAME_SIZE=0
-CONFIG_TESTING_OSTEST=y
 CONFIG_USART2_SERIAL_CONSOLE=y
 CONFIG_VIDEO_FB=y
diff --git a/boards/arm/stm32/nucleo-f446re/configs/pwm/defconfig b/boards/arm/stm32/nucleo-f446re/configs/pwm/defconfig
index 2c2c7d68c28..1a341aeeb8a 100644
--- a/boards/arm/stm32/nucleo-f446re/configs/pwm/defconfig
+++ b/boards/arm/stm32/nucleo-f446re/configs/pwm/defconfig
@@ -53,5 +53,4 @@ CONFIG_STM32_TIM3_PWM=y
 CONFIG_STM32_USART2=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_TASK_NAME_SIZE=0
-CONFIG_TESTING_OSTEST=y
 CONFIG_USART2_SERIAL_CONSOLE=y
diff --git a/boards/arm/stm32/nucleo-f446re/configs/systemview/defconfig b/boards/arm/stm32/nucleo-f446re/configs/systemview/defconfig
index 519a0ef5d8b..01ea37491e5 100644
--- a/boards/arm/stm32/nucleo-f446re/configs/systemview/defconfig
+++ b/boards/arm/stm32/nucleo-f446re/configs/systemview/defconfig
@@ -48,5 +48,4 @@ CONFIG_STM32_JTAG_SW_ENABLE=y
 CONFIG_STM32_USART2=y
 CONFIG_SYSTEM_NSH=y
 CONFIG_TASK_NAME_SIZE=32
-CONFIG_TESTING_OSTEST=y
 CONFIG_USART2_SERIAL_CONSOLE=y