Index: lib/libc/sys/ptrace.2
===================================================================
--- lib/libc/sys/ptrace.2
+++ lib/libc/sys/ptrace.2
@@ -306,7 +306,7 @@
 	sigset_t pl_siglist;
 	siginfo_t pl_siginfo;
 	char	pl_tdname[MAXCOMLEN + 1];
-	int	pl_child_pid;
+	pid_t	pl_child_pid;
 	u_int	pl_syscall_code;
 	u_int	pl_syscall_narg;
 };
Index: sys/kern/sys_process.c
===================================================================
--- sys/kern/sys_process.c
+++ sys/kern/sys_process.c
@@ -96,7 +96,7 @@
 	sigset_t	pl_siglist;	/* LWP pending signal */
 	struct siginfo32 pl_siginfo;	/* siginfo for signal */
 	char	pl_tdname[MAXCOMLEN + 1];	/* LWP name. */
-	int	pl_child_pid;		/* New child pid */
+	pid_t	pl_child_pid;		/* New child pid */
 	u_int		pl_syscall_code;
 	u_int		pl_syscall_narg;
 };
Index: sys/sys/ptrace.h
===================================================================
--- sys/sys/ptrace.h
+++ sys/sys/ptrace.h
@@ -112,7 +112,7 @@
 	sigset_t	pl_siglist;	/* LWP pending signal */
 	struct __siginfo pl_siginfo;	/* siginfo for signal */
 	char		pl_tdname[MAXCOMLEN + 1]; /* LWP name */
-	int		pl_child_pid;	/* New child pid */
+	pid_t		pl_child_pid;	/* New child pid */
 	u_int		pl_syscall_code;
 	u_int		pl_syscall_narg;
 };