diff --git a/lib/libc/posix1e/cap.3 b/lib/libc/posix1e/cap.3
index 81a9e5c90a7..36752a13a89 100644
--- a/lib/libc/posix1e/cap.3
+++ b/lib/libc/posix1e/cap.3
@@ -35,7 +35,7 @@
 .Nd introduction to the POSIX.1e Capability security API
 .Sh SYNOPSIS
 .Fd #include <sys/types.h>
-.Fd #include <sys/cap.h>
+.Fd #include <sys/capability.h>
 .Sh DESCRIPTION
 The POSIX.1e Capability interface allows processes to manipulate their
 capability set, subject to capability manipulation restrictions imposed
diff --git a/lib/libc/posix1e/cap_to_text.3 b/lib/libc/posix1e/cap_to_text.3
index 881af03a2ec..779fb0b44f8 100644
--- a/lib/libc/posix1e/cap_to_text.3
+++ b/lib/libc/posix1e/cap_to_text.3
@@ -37,7 +37,7 @@
 .Fd #include <sys/types.h>
 .Fd #include <sys/capability.h>
 .Ft char *
-.Fn cap_to_text "cap_t cap_p" "size_t *len_p"
+.Fn cap_to_text "cap_t cap_p" "ssize_t *len_p"
 .Sh DESCRIPTION
 The
 .Fn cap_to_text
diff --git a/lib/libc/posix1e/posix1e.3 b/lib/libc/posix1e/posix1e.3
index 40de11df2be..7c0e0223fe3 100644
--- a/lib/libc/posix1e/posix1e.3
+++ b/lib/libc/posix1e/posix1e.3
@@ -34,6 +34,7 @@
 .Sh LIBRARY
 .Lb libposix1e
 .Sh SYNOPSIS
+.Fd #include <sys/types.h>
 .Fd #include <sys/acl.h>
 .\" .Fd #include <sys/audit.h>
 .Fd #include <sys/capability.h>
diff --git a/lib/libposix1e/cap.3 b/lib/libposix1e/cap.3
index 81a9e5c90a7..36752a13a89 100644
--- a/lib/libposix1e/cap.3
+++ b/lib/libposix1e/cap.3
@@ -35,7 +35,7 @@
 .Nd introduction to the POSIX.1e Capability security API
 .Sh SYNOPSIS
 .Fd #include <sys/types.h>
-.Fd #include <sys/cap.h>
+.Fd #include <sys/capability.h>
 .Sh DESCRIPTION
 The POSIX.1e Capability interface allows processes to manipulate their
 capability set, subject to capability manipulation restrictions imposed
diff --git a/lib/libposix1e/cap_to_text.3 b/lib/libposix1e/cap_to_text.3
index 881af03a2ec..779fb0b44f8 100644
--- a/lib/libposix1e/cap_to_text.3
+++ b/lib/libposix1e/cap_to_text.3
@@ -37,7 +37,7 @@
 .Fd #include <sys/types.h>
 .Fd #include <sys/capability.h>
 .Ft char *
-.Fn cap_to_text "cap_t cap_p" "size_t *len_p"
+.Fn cap_to_text "cap_t cap_p" "ssize_t *len_p"
 .Sh DESCRIPTION
 The
 .Fn cap_to_text
diff --git a/lib/libposix1e/posix1e.3 b/lib/libposix1e/posix1e.3
index 40de11df2be..7c0e0223fe3 100644
--- a/lib/libposix1e/posix1e.3
+++ b/lib/libposix1e/posix1e.3
@@ -34,6 +34,7 @@
 .Sh LIBRARY
 .Lb libposix1e
 .Sh SYNOPSIS
+.Fd #include <sys/types.h>
 .Fd #include <sys/acl.h>
 .\" .Fd #include <sys/audit.h>
 .Fd #include <sys/capability.h>