diff --git a/man/coredns-auto.7 b/man/coredns-auto.7
index 889a35e2f..2ef1aaa59 100644
--- a/man/coredns-auto.7
+++ b/man/coredns-auto.7
@@ -10,7 +10,7 @@
 The \fIauto\fP plugin is used for an "old-style" DNS server. It serves from a preloaded file that exists
 on disk. If the zone file contains signatures (i.e. is signed, i.e. using DNSSEC) correct DNSSEC answers
 are returned. Only NSEC is supported! If you use this setup \fIyou\fP are responsible for re-signing the
-zonefile. New or changed zones are automatically picked up from disk.
+zonefile. New or changed zones are automatically picked up from disk only when SOA's serial changes. If the zones are not updated via a zone transfer, the serial must be manually changed.
 
 .SH "SYNTAX"
 .PP
diff --git a/man/coredns-debug.7 b/man/coredns-debug.7
index ec3c8e004..e3602d9db 100644
--- a/man/coredns-debug.7
+++ b/man/coredns-debug.7
@@ -14,6 +14,10 @@ will be printed to standard output.
 .PP
 Note that the \fIerrors\fP plugin (if loaded) will also set a \fB\fCrecover\fR, negating this setting.
 
+.PP
+Enabling this plugin is process-wide: enabling \fIdebug\fP in at least one server block enables
+debug mode globally.
+
 .SH "SYNTAX"
 .PP
 .RS