diff --git a/core/dnsserver/register.go b/core/dnsserver/register.go
index a407c8938..15772a248 100644
--- a/core/dnsserver/register.go
+++ b/core/dnsserver/register.go
@@ -21,6 +21,7 @@ const serverType = "dns"
 // wise they potentially clash with other server types.
 func init() {
 	flag.StringVar(&Port, serverType+".port", DefaultPort, "Default port")
+	flag.StringVar(&Port, "p", DefaultPort, "Default port")
 
 	caddy.RegisterServerType(serverType, caddy.ServerType{
 		Directives: func() []string { return Directives },
diff --git a/coredns.1.md b/coredns.1.md
index 1b4237dcc..64daaca48 100644
--- a/coredns.1.md
+++ b/coredns.1.md
@@ -24,7 +24,7 @@ Available options:
 : specify Corefile to load, if not given CoreDNS will look for a `Corefile` in the current
   directory.
 
-**-dns.port** **PORT**
+**-dns.port** **PORT** or **-p** **PORT**
 : override default port (53) to listen on.
 
 **-pidfile** **FILE**
diff --git a/man/coredns.1 b/man/coredns.1
index e73d4780d..b49500906 100644
--- a/man/coredns.1
+++ b/man/coredns.1
@@ -1,5 +1,5 @@
 .\" Generated by Mmark Markdown Processer - mmark.miek.nl
-.TH "COREDNS" 1 "March 2021" "CoreDNS" "CoreDNS"
+.TH "COREDNS" 1 "May 2021" "CoreDNS" "CoreDNS"
 
 .SH "COREDNS"
 .PP
@@ -32,7 +32,7 @@ Available options:
 specify Corefile to load, if not given CoreDNS will look for a \fB\fCCorefile\fR in the current
 directory.
 .TP
-\fB-dns.port\fP \fBPORT\fP
+\fB-dns.port\fP \fBPORT\fP or \fB-p\fP \fBPORT\fP
 override default port (53) to listen on.
 .TP
 \fB-pidfile\fP \fBFILE\fP
@@ -58,5 +58,5 @@ Apache License 2.0
 
 .SH "SEE ALSO"
 .PP
-Corefile(5) coredns-k8s_external(7) coredns-any(7) coredns-hosts(7) coredns-reload(7) coredns-acl(7) coredns-dnssec(7) coredns-health(7) coredns-grpc(7) coredns-sign(7) coredns-log(7) coredns-tls(7) coredns-file(7) coredns-root(7) coredns-loop(7) coredns-chaos(7) coredns-dnstap(7) coredns-pprof(7) coredns-bufsize(7) coredns-clouddns(7) coredns-loadbalance(7) coredns-cache(7) coredns-whoami(7) coredns-minimal(7) coredns-bind(7) coredns-erratic(7) coredns-auto(7) coredns-import(7) coredns-debug(7) coredns-template(7) coredns-azure(7) coredns-autopath(7) coredns-kubernetes(7) coredns-forward(7) coredns-nsid(7) coredns-secondary(7) coredns-route53(7) coredns-local(7) coredns-errors(7) coredns-transfer(7) coredns-ready(7) coredns-metadata(7) coredns-rewrite(7) coredns-metrics(7) coredns-dns64(7) coredns-etcd(7) coredns-cancel(7) coredns-trace(7).
+Corefile(5) coredns-k8s_external(7) coredns-any(7) coredns-hosts(7) coredns-acl(7) coredns-dnssec(7) coredns-health(7) coredns-grpc(7) coredns-sign(7) coredns-log(7) coredns-tls(7) coredns-file(7) coredns-root(7) coredns-loop(7) coredns-chaos(7) coredns-dnstap(7) coredns-pprof(7) coredns-bufsize(7) coredns-clouddns(7) coredns-loadbalance(7) coredns-cache(7) coredns-whoami(7) coredns-minimal(7) coredns-dns64(7) coredns-erratic(7) coredns-auto(7) coredns-import(7) coredns-debug(7) coredns-template(7) coredns-azure(7) coredns-autopath(7) coredns-kubernetes(7) coredns-forward(7) coredns-nsid(7) coredns-secondary(7) coredns-route53(7) coredns-local(7) coredns-bind(7) coredns-errors(7) coredns-transfer(7) coredns-ready(7) coredns-reload(7) coredns-rewrite(7) coredns-metrics(7) coredns-metadata(7) coredns-etcd(7) coredns-cancel(7) coredns-trace(7).