diff --git a/lib/dns/resolver.c b/lib/dns/resolver.c
index c562b9094f..df24057632 100644
--- a/lib/dns/resolver.c
+++ b/lib/dns/resolver.c
@@ -4720,6 +4720,7 @@ fctx_create(dns_resolver_t *res, const dns_name_t *name, dns_rdatatype_t type,
 	fctx->rand_bits = 0;
 	fctx->timeout = false;
 	fctx->addrinfo = NULL;
+	fctx->client = NULL;
 	fctx->ns_ttl = 0;
 	fctx->ns_ttl_ok = false;