diff --git a/sys/netinet/icmp_var.h b/sys/netinet/icmp_var.h
index 6b421f2df44..d986b35e400 100644
--- a/sys/netinet/icmp_var.h
+++ b/sys/netinet/icmp_var.h
@@ -42,21 +42,21 @@
  */
 struct	icmpstat {
 /* statistics related to icmp packets generated */
-	u_long	icps_error;		/* # of calls to icmp_error */
-	u_long	icps_oldshort;		/* no error 'cuz old ip too short */
-	u_long	icps_oldicmp;		/* no error 'cuz old was icmp */
-	u_long	icps_outhist[ICMP_MAXTYPE + 1];
+	uint64_t	icps_error;		/* # of calls to icmp_error */
+	uint64_t	icps_oldshort;		/* no error 'cuz old ip too short */
+	uint64_t	icps_oldicmp;		/* no error 'cuz old was icmp */
+	uint64_t	icps_outhist[ICMP_MAXTYPE + 1];
 /* statistics related to input messages processed */
-	u_long	icps_badcode;		/* icmp_code out of range */
-	u_long	icps_tooshort;		/* packet < ICMP_MINLEN */
-	u_long	icps_checksum;		/* bad checksum */
-	u_long	icps_badlen;		/* calculated bound mismatch */
-	u_long	icps_reflect;		/* number of responses */
-	u_long	icps_inhist[ICMP_MAXTYPE + 1];
-	u_long	icps_bmcastecho;	/* b/mcast echo requests dropped */
-	u_long	icps_bmcasttstamp;	/* b/mcast tstamp requests dropped */
-	u_long	icps_badaddr;		/* bad return address */
-	u_long	icps_noroute;		/* no route back */
+	uint64_t	icps_badcode;		/* icmp_code out of range */
+	uint64_t	icps_tooshort;		/* packet < ICMP_MINLEN */
+	uint64_t	icps_checksum;		/* bad checksum */
+	uint64_t	icps_badlen;		/* calculated bound mismatch */
+	uint64_t	icps_reflect;		/* number of responses */
+	uint64_t	icps_inhist[ICMP_MAXTYPE + 1];
+	uint64_t	icps_bmcastecho;	/* b/mcast echo requests dropped */
+	uint64_t	icps_bmcasttstamp;	/* b/mcast tstamp requests dropped */
+	uint64_t	icps_badaddr;		/* bad return address */
+	uint64_t	icps_noroute;		/* no route back */
 };
 
 #ifdef _KERNEL