diff --git a/iterator/iter_utils.c b/iterator/iter_utils.c
index ed51d0660..38cc92b96 100644
--- a/iterator/iter_utils.c
+++ b/iterator/iter_utils.c
@@ -365,8 +365,8 @@ causes_cycle(struct module_qstate* qstate, uint8_t* name, size_t namelen,
 	qinf.qname_len = namelen;
 	qinf.qtype = t;
 	qinf.qclass = c;
-	return (*qstate->env->detect_cycle)(qstate, &qinf, BIT_RD|BIT_CD, 
-		qstate->is_priming);
+	return (*qstate->env->detect_cycle)(qstate, &qinf, 
+		(uint16_t)(BIT_RD|BIT_CD), qstate->is_priming);
 }
 
 void