diff --git a/lib/dns/rbtdb.c b/lib/dns/rbtdb.c
index 10706b4aa0..c5123748ad 100644
--- a/lib/dns/rbtdb.c
+++ b/lib/dns/rbtdb.c
@@ -2808,6 +2808,7 @@ findnodeintree(dns_rbtdb_t *rbtdb, dns_rbt_t *tree, const dns_name_t *name,
 		 * unlocking then relocking.
 		 */
 		__sync_synchronize();
+		pthread_yield();
 		locktype = isc_rwlocktype_write;
 		RWLOCK(&rbtdb->tree_lock, locktype);
 		node = NULL;