diff --git a/Makefile.libcompat b/Makefile.libcompat
--- a/Makefile.libcompat
+++ b/Makefile.libcompat
@@ -27,7 +27,8 @@
 		-DNO_CPU_CFLAGS \
 		MK_CTF=no \
 		-DNO_LINT \
-		MK_TESTS=no
+		MK_TESTS=no \
+		MK_BOOT=no
 LIBCOMPATWMAKE+=	${TIME_ENV} ${LIBCOMPATWMAKEENV} ${MAKE} ${LIBCOMPATWMAKEFLAGS} \
 			OBJTOP=${LIBCOMPAT_OBJTOP} \
 			OBJROOT='$${OBJTOP}/' \