diff --git a/src/lib/libc/stdlib/strtonum.3 b/src/lib/libc/stdlib/strtonum.3
index bb738a55..763efc18 100644
--- a/src/lib/libc/stdlib/strtonum.3
+++ b/src/lib/libc/stdlib/strtonum.3
@@ -29,7 +29,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"	$OpenBSD: strtonum.3,v 1.3 2004/05/04 18:37:25 jmc Exp $
+.\"	$OpenBSD: strtonum.3,v 1.4 2004/05/06 04:20:20 deraadt Exp $
 .\"
 .Dd April 29, 2004
 .Dt STRTONUM 3
@@ -83,7 +83,7 @@ If
 is non-null,
 .Fn strtonum
 stores an error string in
-.Fa *endptr
+.Fa *errstr
 indicating the failure.
 .Sh RETURN VALUES
 The