diff --git a/share/man/man9/accept_filter.9 b/share/man/man9/accept_filter.9
index 97cc58ee3d3f..105be6315fa9 100644
--- a/share/man/man9/accept_filter.9
+++ b/share/man/man9/accept_filter.9
@@ -142,7 +142,7 @@ This manual page was written by
 .An Alfred Perlstein ,
 .An Sheldon Hearn
 and
-Jeroen Ruigrok van der Werven.
+.An Jeroen Ruigrok van der Werven.
 .Pp
 The accept filter concept was pioneered by
 .An David Filo