diff --git a/include/protocols/talkd.h b/include/protocols/talkd.h
index 34b5da2e567e..962e47be7e0d 100644
--- a/include/protocols/talkd.h
+++ b/include/protocols/talkd.h
@@ -62,10 +62,10 @@ typedef struct {
 	u_char	type;		/* request type, see below */
 	u_char	answer;		/* not used */
 	u_char	pad;
-	u_long	id_num;		/* message id */
+	u_int32_t	id_num;		/* message id */
 	struct	osockaddr addr;		/* old (4.3) style */
 	struct	osockaddr ctl_addr;	/* old (4.3) style */
-	long	pid;		/* caller's process id */
+	int32_t	pid;		/* caller's process id */
 #define	NAME_SIZE	12
 	char	l_name[NAME_SIZE];/* caller's name */
 	char	r_name[NAME_SIZE];/* callee's name */
@@ -81,7 +81,7 @@ typedef struct {
 	u_char	type;		/* type of request message, see below */
 	u_char	answer;		/* respose to request message, see below */
 	u_char	pad;
-	u_long	id_num;		/* message id */
+	u_int32_t	id_num;		/* message id */
 	struct	osockaddr addr;	/* address for establishing conversation */
 } CTL_RESPONSE;