diff --git a/lib/curl_sasl.c b/lib/curl_sasl.c
index c7dc51647..c7dbdd02b 100644
--- a/lib/curl_sasl.c
+++ b/lib/curl_sasl.c
@@ -1341,6 +1341,8 @@ static void state(struct SASL *sasl,
   if(sasl->state != newstate)
     infof(conn->data, "SASL %p state change from %s to %s\n",
           (void *)sasl, names[sasl->state], names[newstate]);
+#else
+  (void) conn;
 #endif
 
   sasl->state = newstate;