diff --git a/arch/loongarch/configs/loongson3_defconfig b/arch/loongarch/configs/loongson3_defconfig
index d2beed31ab749c861e85c3c2e3d148959fd3315e..2f917ae20f76a7af65280ecc03c392f0cac44836 100644
--- a/arch/loongarch/configs/loongson3_defconfig
+++ b/arch/loongarch/configs/loongson3_defconfig
@@ -44,6 +44,7 @@ CONFIG_CPU_HAS_LSX=y
 CONFIG_CPU_HAS_LASX=y
 CONFIG_NR_CPUS=256
 CONFIG_NUMA=y
+# CONFIG_VA_BITS_40 is not set
 CONFIG_KEXEC=y
 CONFIG_CRASH_DUMP=y
 CONFIG_PARAVIRT_TIME_ACCOUNTING=y