diff --git a/nuttx-configs/px4-stm32f4discovery/nsh/defconfig b/nuttx-configs/px4-stm32f4discovery/nsh/defconfig
index abf7951952..9395017c7a 100644
--- a/nuttx-configs/px4-stm32f4discovery/nsh/defconfig
+++ b/nuttx-configs/px4-stm32f4discovery/nsh/defconfig
@@ -1085,7 +1085,6 @@ CONFIG_LIBC_ARCH_MEMCPY=y
 # CONFIG_LIBC_ARCH_STRNCPY is not set
 # CONFIG_LIBC_ARCH_STRLEN is not set
 # CONFIG_LIBC_ARCH_STRNLEN is not set
-# CONFIG_LIBC_ARCH_BZERO is not set
 # CONFIG_LIBC_ARCH_ELF is not set
 CONFIG_ARMV7M_MEMCPY=y
 # CONFIG_NOPRINTF_FIELDWIDTH is not set