diff --git a/Makefile.inc1 b/Makefile.inc1
index c768b0ada916..2ba26504cd65 100644
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -82,7 +82,7 @@ SUBDIR+= usr.sbin
 .if exists(secure) && !defined(NOCRYPT) && !defined(NOSECURE)
 SUBDIR+= secure
 .endif
-.if exists(lkm) && !defined(NOLKM)
+.if exists(lkm) && !defined(NOLKM) && ${OBJFORMAT} == "aout"
 SUBDIR+= lkm
 .endif
 
@@ -741,7 +741,7 @@ _perl=		gnu/usr.bin/perl/miniperl
 .if !defined(NOSHARE) && exists(${.CURDIR}/share)
 _scrnmaps=	share/syscons/scrnmaps
 .endif
-.if !defined(NOLKM) && exists(${.CURDIR}/lkm)
+.if !defined(NOLKM) && exists(${.CURDIR}/lkm) && ${OBJFORMAT} == "aout"
 _linux=		lkm/linux
 .endif
 .if ${OBJFORMAT} == "aout"