diff --git a/usr.bin/join/join.1 b/usr.bin/join/join.1
index 9a0084948f5b..e9fff1ec4edf 100644
--- a/usr.bin/join/join.1
+++ b/usr.bin/join/join.1
@@ -47,7 +47,6 @@
 .Fl a Ar file_number | Fl v Ar file_number
 .Oc
 .Op Fl e Ar string
-.Op Fl j Ar file_number field
 .Op Fl o Ar list
 .Bk -words
 .Ek