diff --git a/share/man/man7/development.7 b/share/man/man7/development.7
index f76d940574e4..6e4d81c412c3 100644
--- a/share/man/man7/development.7
+++ b/share/man/man7/development.7
@@ -163,6 +163,7 @@ make -sj8 kernel KERNFAST=1 DESTDIR=/clients/arm
 .Xr witness 4 ,
 .Xr build 7 ,
 .Xr hier 7 ,
+.Xr ports 7 ,
 .Xr release 7 ,
 .Xr locking 9 ,
 .Xr style 9
diff --git a/share/man/man7/ports.7 b/share/man/man7/ports.7
index ae885d79a10b..7f23ff2e4d60 100644
--- a/share/man/man7/ports.7
+++ b/share/man/man7/ports.7
@@ -617,6 +617,7 @@ is going to be built with Python 3.7 support.)
 .Sh SEE ALSO
 .Xr make 1 ,
 .Xr make.conf 5 ,
+.Xr development 7 ,
 .Xr pkg 7 ,
 .Xr portsnap 8
 .Pp