diff --git a/nuttx-configs/px4esc-v1/bootloader/defconfig b/nuttx-configs/px4esc-v1/bootloader/defconfig
index 6fb64e4306..bd54e4d1d8 100644
--- a/nuttx-configs/px4esc-v1/bootloader/defconfig
+++ b/nuttx-configs/px4esc-v1/bootloader/defconfig
@@ -881,7 +881,6 @@ CONFIG_NUNGET_CHARS=0
 # 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 is not set
 # CONFIG_NOPRINTF_FIELDWIDTH is not set