diff --git a/lib/curl_sasl.c b/lib/curl_sasl.c
index e9a3c18d6..1725af86e 100644
--- a/lib/curl_sasl.c
+++ b/lib/curl_sasl.c
@@ -199,9 +199,10 @@ void Curl_sasl_cleanup(struct connectdata *conn, unsigned int authused)
   if(authused == SASL_AUTH_NTLM) {
     Curl_ntlm_sspi_cleanup(&conn->ntlm);
   }
+  (void)conn;
 #else
   /* Reserved for future use */
   (void)conn;
   (void)authused;
 #endif
-}
\ No newline at end of file
+}