diff --git a/src/core/forward.c b/src/core/forward.c
index 8216ccf88ad..a31c1c2af57 100644
--- a/src/core/forward.c
+++ b/src/core/forward.c
@@ -471,6 +471,7 @@ int forward_request(struct sip_msg* msg, str* dst, unsigned short port,
 
 	prev_send_sock=0;
 	err=0;
+	memset(&dns_srv_h, 0, sizeof(struct dns_srv_handle));
 #endif
 
 	buf=0;
diff --git a/src/core/ip_addr.h b/src/core/ip_addr.h
index 668179c45ef..afbaece0758 100644
--- a/src/core/ip_addr.h
+++ b/src/core/ip_addr.h
@@ -421,6 +421,7 @@ static inline void su2ip_addr(struct ip_addr* ip, union sockaddr_union* su)
 			break;
 		default:
 			LM_CRIT("unknown address family %d\n", su->s.sa_family);
+			memset(ip, 0, sizeof(ip_addr_t));
 	}
 }