diff --git a/sys/sys/mbuf.h b/sys/sys/mbuf.h
index 8035b8efae6..1de3190a11f 100644
--- a/sys/sys/mbuf.h
+++ b/sys/sys/mbuf.h
@@ -41,9 +41,9 @@
 #include <sys/queue.h>
 
 /*
- * Mbufs are of a single size, MSIZE (machine/param.h), which
+ * Mbufs are of a single size, MSIZE (sys/param.h), which
  * includes overhead.  An mbuf may add a single "mbuf cluster" of size
- * MCLBYTES (also in machine/param.h), which has no additional overhead
+ * MCLBYTES (also in sys/param.h), which has no additional overhead
  * and is used instead of the internal data area; this is done when
  * at least MINCLSIZE of data must be stored.  Additionally, it is possible
  * to allocate a separate buffer externally and attach it to the mbuf in