diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig
index 3b042dbb2c41..606597da46b8 100644
--- a/arch/loongarch/Kconfig
+++ b/arch/loongarch/Kconfig
@@ -220,6 +220,7 @@ menu "Kernel type and options"
 
 choice
 	prompt "Kernel type"
+	default 64BIT # Keep existing behavior
 
 config 32BIT
 	bool "32-bit kernel"