diff --git a/sbin/setkey/setkey.8 b/sbin/setkey/setkey.8
index 1a9b9c10e6dc..ffe1297872e0 100644
--- a/sbin/setkey/setkey.8
+++ b/sbin/setkey/setkey.8
@@ -259,7 +259,7 @@ Specify hard/soft lifetime.
 .Bl -tag -width Fl -compact 
 .It Fl E Ar ealgo Ar key
 Specify encryption algorithm.
-.It Fl A Ar ealgo Ar key
+.It Fl A Ar aalgo Ar key
 Specify authentication algorithm.
 If
 .Fl A
diff --git a/usr.sbin/setkey/setkey.8 b/usr.sbin/setkey/setkey.8
index 1a9b9c10e6dc..ffe1297872e0 100644
--- a/usr.sbin/setkey/setkey.8
+++ b/usr.sbin/setkey/setkey.8
@@ -259,7 +259,7 @@ Specify hard/soft lifetime.
 .Bl -tag -width Fl -compact 
 .It Fl E Ar ealgo Ar key
 Specify encryption algorithm.
-.It Fl A Ar ealgo Ar key
+.It Fl A Ar aalgo Ar key
 Specify authentication algorithm.
 If
 .Fl A