diff --git a/usr.sbin/arp/arp.c b/usr.sbin/arp/arp.c
index e6342edb8548..493d9e815cd1 100644
--- a/usr.sbin/arp/arp.c
+++ b/usr.sbin/arp/arp.c
@@ -99,7 +99,7 @@ int my_ether_aton(char *a, struct ether_addr *n);
 int rtmsg(int cmd);
 int get_ether_addr(u_int32_t ipaddr, struct ether_addr *hwaddr);
 
-static int pid;
+static pid_t pid;
 static int nflag;	/* no reverse dns lookups */
 static int aflag;	/* do it for all entries */
 static int s = -1;
diff --git a/usr.sbin/ndp/ndp.c b/usr.sbin/ndp/ndp.c
index 8e2fb781e629..3ad148b4dcb5 100644
--- a/usr.sbin/ndp/ndp.c
+++ b/usr.sbin/ndp/ndp.c
@@ -122,7 +122,7 @@
 	((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
 #define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
 
-static int pid;
+static pid_t pid;
 static int cflag;
 static int nflag;
 static int tflag;