1 files changed, 1 insertions, 0 deletions
diff --git a/lib/urldata.h b/lib/urldata.h
index f12e99b8d..22c66cd44 100644
--- a/lib/urldata.h
+++ b/lib/urldata.h
@@ -835,6 +835,7 @@ struct Curl_handler {
 #define PROTOPT_WILDCARD (1<<12) /* protocol supports wildcard matching */
 #define PROTOPT_USERPWDCTRL (1<<13) /* Allow "control bytes" (< 32 ascii) in
                                        user name and password */
+#define PROTOPT_NOTCPPROXY (1<<14) /* this protocol can't proxy over TCP */
 
 #define CONNCHECK_NONE 0                 /* No checks */
 #define CONNCHECK_ISDEAD (1<<0)          /* Check if the connection is dead. */