diff --git a/lib/socks.c b/lib/socks.c
index 30a73112c3..cb198df1ce 100644
--- a/lib/socks.c
+++ b/lib/socks.c
@@ -590,7 +590,6 @@ static CURLproxycode do_SOCKS5(struct Curl_cfilter *cf,
   bool allow_gssapi = FALSE;
   struct Curl_dns_entry *dns = NULL;
 
-  DEBUGASSERT(auth & (CURLAUTH_BASIC | CURLAUTH_GSSAPI));
   switch(sx->state) {
   case CONNECT_SOCKS_INIT:
     if(conn->bits.httpproxy)