diff --git a/WiFiManager.h b/WiFiManager.h
index 5b37e44..3da6da4 100644
--- a/WiFiManager.h
+++ b/WiFiManager.h
@@ -35,7 +35,9 @@ const char HTTP_SCAN_LINK[] PROGMEM       = "<br/><div class=\"c\"><a href=\"/wi
 const char HTTP_SAVED[] PROGMEM           = "<div>Credentials Saved<br />Trying to connect ESP to network.<br />If it fails reconnect to AP to try again</div>";
 const char HTTP_END[] PROGMEM             = "</div></body></html>";
 
+#ifndef WIFI_MANAGER_MAX_PARAMS
 #define WIFI_MANAGER_MAX_PARAMS 10
+#endif
 
 class WiFiManagerParameter {
   public: