diff --git a/sys/dev/isp/isp_freebsd.c b/sys/dev/isp/isp_freebsd.c
index 464c80584c0..3f7850829b9 100644
--- a/sys/dev/isp/isp_freebsd.c
+++ b/sys/dev/isp/isp_freebsd.c
@@ -444,7 +444,7 @@ ispioctl(struct cdev *dev, u_long c, caddr_t addr, int flags, struct thread *td)
 
 	case ISP_RESCAN:
 		if (IS_FC(isp)) {
-			chan = *(int *)addr;
+			chan = *(intptr_t *)addr;
 			if (chan < 0 || chan >= isp->isp_nchan) {
 				retval = -ENXIO;
 				break;
@@ -461,7 +461,7 @@ ispioctl(struct cdev *dev, u_long c, caddr_t addr, int flags, struct thread *td)
 
 	case ISP_FC_LIP:
 		if (IS_FC(isp)) {
-			chan = *(int *)addr;
+			chan = *(intptr_t *)addr;
 			if (chan < 0 || chan >= isp->isp_nchan) {
 				retval = -ENXIO;
 				break;