diff --git a/lib/libutil/kinfo_getallproc.3 b/lib/libutil/kinfo_getallproc.3
index 56d4ad613bb9..7005d4f2931a 100644
--- a/lib/libutil/kinfo_getallproc.3
+++ b/lib/libutil/kinfo_getallproc.3
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd July 9, 2009
+.Dd May 27, 2015
 .Dt KINFO_GETALLPROC 3
 .Os
 .Sh NAME
@@ -35,6 +35,7 @@
 .Lb libutil
 .Sh SYNOPSIS
 .In sys/types.h
+.In sys/user.h
 .In libutil.h
 .Ft struct kinfo_proc *
 .Fn kinfo_getallproc "int *cntp"
diff --git a/lib/libutil/kinfo_getfile.3 b/lib/libutil/kinfo_getfile.3
index 1e0bab70150b..2a35687bf25d 100644
--- a/lib/libutil/kinfo_getfile.3
+++ b/lib/libutil/kinfo_getfile.3
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd December 6, 2008
+.Dd May 27, 2015
 .Dt KINFO_GETFILE 3
 .Os
 .Sh NAME
@@ -35,6 +35,7 @@
 .Lb libutil
 .Sh SYNOPSIS
 .In sys/types.h
+.In sys/user.h
 .In libutil.h
 .Ft struct kinfo_file *
 .Fn kinfo_getfile "pid_t pid" "int *cntp"
diff --git a/lib/libutil/kinfo_getproc.3 b/lib/libutil/kinfo_getproc.3
index 804cb6c19b77..f5ccbc5011ab 100644
--- a/lib/libutil/kinfo_getproc.3
+++ b/lib/libutil/kinfo_getproc.3
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd March 1, 2013
+.Dd May 27, 2015
 .Dt KINFO_GETPROC 3
 .Os
 .Sh NAME
@@ -35,6 +35,7 @@
 .Lb libutil
 .Sh SYNOPSIS
 .In sys/types.h
+.In sys/user.h
 .In libutil.h
 .Ft struct kinfo_proc *
 .Fn kinfo_getproc "pid_t pid"
diff --git a/lib/libutil/kinfo_getvmmap.3 b/lib/libutil/kinfo_getvmmap.3
index 165de6084147..c6a13700a71d 100644
--- a/lib/libutil/kinfo_getvmmap.3
+++ b/lib/libutil/kinfo_getvmmap.3
@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd December 6, 2008
+.Dd May 27, 2015
 .Dt KINFO_GETVMMAP 3
 .Os
 .Sh NAME
@@ -35,6 +35,7 @@
 .Lb libutil
 .Sh SYNOPSIS
 .In sys/types.h
+.In sys/user.h
 .In libutil.h
 .Ft struct kinfo_vmentry *
 .Fn kinfo_getvmmap "pid_t pid" "int *cntp"