diff --git a/src/arch/i386/Makefile.bootblock.inc b/src/arch/i386/Makefile.bootblock.inc
index fae8e2060c..b667ca3c97 100644
--- a/src/arch/i386/Makefile.bootblock.inc
+++ b/src/arch/i386/Makefile.bootblock.inc
@@ -23,13 +23,13 @@ $(obj)/coreboot.bootblock: $(obj)/bootblock.elf
 	@printf "    OBJCOPY    $(subst $(obj)/,,$(@))\n"
 	$(OBJCOPY) -O binary $< $@
 
-bootblock_lds := $(src)/arch/i386/init/ldscript_failover.lb
+bootblock_lds = $(src)/arch/i386/init/ldscript_failover.lb
 bootblock_lds += $(src)/cpu/x86/16bit/entry16.lds
 bootblock_lds += $(src)/cpu/x86/16bit/reset16.lds
 bootblock_lds += $(src)/arch/i386/lib/id.lds
 bootblock_lds += $(chipset_bootblock_lds)
 
-bootblock_inc := $(src)/arch/i386/init/bootblock_prologue.c
+bootblock_inc = $(src)/arch/i386/init/bootblock_prologue.c
 bootblock_inc += $(src)/cpu/x86/16bit/entry16.inc
 bootblock_inc += $(src)/cpu/x86/16bit/reset16.inc
 bootblock_inc += $(src)/cpu/x86/32bit/entry32.inc