diff --git a/sys/sys/buf.h b/sys/sys/buf.h
index 35e79b1287b4..651b58d70f4f 100644
--- a/sys/sys/buf.h
+++ b/sys/sys/buf.h
@@ -1 +1 @@
-revision 1.12 intentionally removed
+revision 1.13 intentionally removed