diff --git a/configs/efm32-g8xx-stk/nsh/defconfig b/configs/efm32-g8xx-stk/nsh/defconfig
index 2aded204150..753669d80f4 100644
--- a/configs/efm32-g8xx-stk/nsh/defconfig
+++ b/configs/efm32-g8xx-stk/nsh/defconfig
@@ -139,9 +139,11 @@ CONFIG_EFM32_HAVE_USART2=y
 CONFIG_EFM32_HAVE_UART0=y
 # CONFIG_EFM32_HAVE_UART1 is not set
 CONFIG_EFM32_HAVE_LEUART1=y
-# CONFIG_EFM32_USART is not set
+# CONFIG_EFM32_USART_ISUART is not set
+# CONFIG_EFM32_USART_ISSPI is not set
 CONFIG_EFM32_UART=y
 # CONFIG_EFM32_LEUART is not set
+# CONFIG_EFM32_DMA is not set
 # CONFIG_EFM32_USART0 is not set
 # CONFIG_EFM32_USART1 is not set
 # CONFIG_EFM32_USART2 is not set
@@ -399,6 +401,7 @@ CONFIG_ARCH_HAVE_UART0=y
 #
 CONFIG_MCU_SERIAL=y
 CONFIG_STANDARD_SERIAL=y
+# CONFIG_ARCH_HAVE_SERIAL_TERMIOS is not set
 CONFIG_UART0_SERIAL_CONSOLE=y
 # CONFIG_OTHER_SERIAL_CONSOLE is not set
 # CONFIG_NO_SERIAL_CONSOLE is not set