1 files changed, 3 insertions, 2 deletions

diff --git a/src/microhttpd/mhd_send.c b/src/microhttpd/mhd_send.c
index e632406e..ae763b9b 100644
--- a/src/microhttpd/mhd_send.c
+++ b/src/microhttpd/mhd_send.c
@@ -822,8 +822,9 @@ MHD_send_data_ (struct MHD_Connection *connection,
      * sent amount smaller than provided amount, as TLS
      * connections may break data into smaller parts for sending. */
 #endif /* EPOLL_SUPPORT */
-#endif /* HTTPS_SUPPORT  */
-    (void) 0; /* Mute compiler warning for non-TLS builds. */
+#else  /* ! HTTPS_SUPPORT  */
+    ret = MHD_ERR_NOTCONN_;
+#endif /* ! HTTPS_SUPPORT  */
   }
   else
   {