diff --git a/configs/stm32l476vg-disco/nsh/defconfig b/configs/stm32l476vg-disco/nsh/defconfig
index ed975bacb57..78321be48c6 100644
--- a/configs/stm32l476vg-disco/nsh/defconfig
+++ b/configs/stm32l476vg-disco/nsh/defconfig
@@ -68,7 +68,7 @@ CONFIG_DEBUG_LIB=y
 CONFIG_DEBUG_LEDS=y
 CONFIG_DEBUG_ANALOG=y
 CONFIG_DEBUG_GPIO=y
-CONFIG_DEBUG_RTC=y
+# CONFIG_DEBUG_RTC is not set
 CONFIG_DEBUG_SPI=y
 CONFIG_ARCH_HAVE_STACKCHECK=y
 # CONFIG_STACK_COLORATION is not set