diff --git a/lib/dns/rdataset.c b/lib/dns/rdataset.c
index aad094ef49..afe76e16dd 100644
--- a/lib/dns/rdataset.c
+++ b/lib/dns/rdataset.c
@@ -409,9 +409,8 @@ towiresorted(dns_rdataset_t *rdataset, const dns_name_t *owner_name,
 			/*
 			 * 'Random' order.
 			 */
+			isc_uint32_t val = isc_random32();
 			for (i = 0; i < count; i++) {
-				isc_uint32_t val = isc_random32();
-
 				choice = i + val % (count - i);
 				rdata = in[i];
 				in[i] = in[choice];