diff --git a/configs/olimexino-stm32/composite/defconfig b/configs/olimexino-stm32/composite/defconfig
index f8fe9eca0e..868cfb9268 100644
--- a/configs/olimexino-stm32/composite/defconfig
+++ b/configs/olimexino-stm32/composite/defconfig
@@ -123,7 +123,6 @@ CONFIG_STM32_USART2=y
 CONFIG_STM32_USB=y
 CONFIG_SYMTAB_ORDEREDBYNAME=y
 CONFIG_SYSTEM_COMPOSITE=y
-CONFIG_SYSTEM_FREE=y
 CONFIG_SYSTEM_TIME64=y
 CONFIG_TASK_NAME_SIZE=12
 CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=768
diff --git a/configs/olimexino-stm32/nsh/defconfig b/configs/olimexino-stm32/nsh/defconfig
index c252fa3a66..264572d971 100644
--- a/configs/olimexino-stm32/nsh/defconfig
+++ b/configs/olimexino-stm32/nsh/defconfig
@@ -109,7 +109,6 @@ CONFIG_STM32_TIM3=y
 CONFIG_STM32_USART1=y
 CONFIG_STM32_USART2=y
 CONFIG_SYMTAB_ORDEREDBYNAME=y
-CONFIG_SYSTEM_FREE=y
 CONFIG_SYSTEM_TIME64=y
 CONFIG_TASK_NAME_SIZE=12
 CONFIG_TASK_SPAWN_DEFAULT_STACKSIZE=768