diff --git a/arch/alpha/Kbuild b/arch/alpha/Kbuild
index a4e40e534e6a..c2302017403a 100644
--- a/arch/alpha/Kbuild
+++ b/arch/alpha/Kbuild
@@ -1 +1,3 @@
 # SPDX-License-Identifier: GPL-2.0-only
+obj-y			+= kernel/ mm/
+obj-$(CONFIG_MATHEMU)	+= math-emu/
diff --git a/arch/alpha/Makefile b/arch/alpha/Makefile
index c2946431d88d..52529ee42dac 100644
--- a/arch/alpha/Makefile
+++ b/arch/alpha/Makefile
@@ -38,8 +38,6 @@ KBUILD_CFLAGS += $(cflags-y) -Wa,-mev6
 
 head-y := arch/alpha/kernel/head.o
 
-core-y				+= arch/alpha/kernel/ arch/alpha/mm/
-core-$(CONFIG_MATHEMU)		+= arch/alpha/math-emu/
 libs-y				+= arch/alpha/lib/
 
 # export what is needed by arch/alpha/boot/Makefile