diff --git a/lib/connect.c b/lib/connect.c
index 604bb2a1a5..bcc1ed74ab 100644
--- a/lib/connect.c
+++ b/lib/connect.c
@@ -857,7 +857,7 @@ singleipconnect(struct connectdata *conn,
 
   addr.family = ai->ai_family;
   addr.socktype = conn->socktype;
-  addr.protocol = ai->ai_protocol;
+  addr.protocol = conn->socktype==SOCK_DGRAM?IPPROTO_UDP:ai->ai_protocol;
   addr.addrlen = ai->ai_addrlen;
 
   if(addr.addrlen > sizeof(struct Curl_sockaddr_storage))