diff --git a/lib/curl_ntlm.c b/lib/curl_ntlm.c
index f9ddf506d..53d89d0e2 100644
--- a/lib/curl_ntlm.c
+++ b/lib/curl_ntlm.c
@@ -216,7 +216,7 @@ CURLcode Curl_output_ntlm(struct connectdata *conn, bool proxy)
     /* connection is already authenticated,
      * don't send a header in future requests */
     ntlm->state = NTLMSTATE_LAST;
-
+    /* fall-through */
   case NTLMSTATE_LAST:
     Curl_safefree(*allocuserpwd);
     authp->done = TRUE;