diff --git a/zfs/lib/libumem/include/Makefile.in b/zfs/lib/libumem/include/Makefile.in
index b16a5d217a..1ea68cd14a 100644
--- a/zfs/lib/libumem/include/Makefile.in
+++ b/zfs/lib/libumem/include/Makefile.in
@@ -1 +1,2 @@
-DISTFILES = umem.h
+subdir-m += sys
+DISTFILES = misc.h umem.h umem_base.h umem_impl.h vmem_base.h vmem_stand.h
diff --git a/zfs/lib/libumem/sys/Makefile.in b/zfs/lib/libumem/include/sys/Makefile.in
similarity index 100%
rename from zfs/lib/libumem/sys/Makefile.in
rename to zfs/lib/libumem/include/sys/Makefile.in