diff --git a/buildroot-2021.05/package/busybox/busybox.mk b/buildroot-2021.05/package/busybox/busybox.mk
index 68e0b8a72..4b1fbade1 100644
--- a/buildroot-2021.05/package/busybox/busybox.mk
+++ b/buildroot-2021.05/package/busybox/busybox.mk
@@ -103,7 +103,7 @@ ifndef BUSYBOX_CONFIG_FILE
 BUSYBOX_CONFIG_FILE = $(call qstrip,$(BR2_PACKAGE_BUSYBOX_CONFIG))
 endif
 
-BUSYBOX_KCONFIG_HAS_DEFCONFIG = NO
+BUSYBOX_KCONFIG_SUPPORTS_DEFCONFIG = NO
 BUSYBOX_KCONFIG_FILE = $(BUSYBOX_CONFIG_FILE)
 BUSYBOX_KCONFIG_FRAGMENT_FILES = $(call qstrip,$(BR2_PACKAGE_BUSYBOX_CONFIG_FRAGMENT_FILES))
 BUSYBOX_KCONFIG_EDITORS = menuconfig xconfig gconfig