diff --git a/doc/man-pages/pod1/afs_compile_et.pod b/doc/man-pages/pod1/afs_compile_et.pod
index b90224a910..f365d04f30 100644
--- a/doc/man-pages/pod1/afs_compile_et.pod
+++ b/doc/man-pages/pod1/afs_compile_et.pod
@@ -49,6 +49,8 @@ are supported values (via the B<c> and B<k&r-c> values, respectively).
 The default is ANSI C.  There is some support for C++ started, but that is
 not yet supported.
 
+The B<-lang> <I<lang>> option is a synonym for B<-language> <I<lang>>>.
+
 =item B<-prefix> <I<prefix>>
 
 Specifies the directory to search for the F<error_table.et> file.