diff --git a/libblkid/src/topology/dm.c b/libblkid/src/topology/dm.c
index e061632..6add2f7 100644
--- a/libblkid/src/topology/dm.c
+++ b/libblkid/src/topology/dm.c
@@ -16,6 +16,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <sys/stat.h>
+#include <sys/sysmacros.h>
 #include <sys/types.h>
 #include <unistd.h>