diff --git a/lib/libc/sys/lio_listio.2 b/lib/libc/sys/lio_listio.2
index cc31f54babf2..0e04e7c88338 100644
--- a/lib/libc/sys/lio_listio.2
+++ b/lib/libc/sys/lio_listio.2
@@ -24,7 +24,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd Dec 7, 2019
+.Dd December 7, 2019
 .Dt LIO_LISTIO 2
 .Os
 .Sh NAME