--- a/arch/mips/vdso/Makefile
+++ b/arch/mips/vdso/Makefile
@@ -75,7 +75,7 @@ $(obj-vdso): KBUILD_AFLAGS := $(aflags-v
 
 $(obj)/vdso.lds: KBUILD_CPPFLAGS := $(native-abi)
 
-$(obj)/vdso.so.dbg: $(obj)/vdso.lds $(obj-vdso) FORCE
+$(obj)/vdso.so.dbg: $(obj)/vdso.lds $(obj-vdso) $(obj)/genvdso FORCE
 	$(call if_changed,vdsold)
 
 $(obj)/vdso-image.c: $(obj)/vdso.so.dbg $(obj)/genvdso FORCE