diff --git a/src/espmega_iot_core.cpp b/src/espmega_iot_core.cpp
index 50e1bd4..b1d9ae8 100644
--- a/src/espmega_iot_core.cpp
+++ b/src/espmega_iot_core.cpp
@@ -458,9 +458,9 @@ void ota_begin()
         if(!value.compareTo("yes"))
           use_auth = true;
       } else if(!arg.compareTo("webui_username")) {
-        ESPMega_FRAM.write(EEPROM_ADDRESS_WEBUI_USERNAME, (uint8_t *)value.c_str(), value.length());
+        ESPMega_FRAM.write(EEPROM_ADDRESS_WEBUI_USERNAME, (uint8_t *)value.c_str(), value.length()+1);
       } else if(!arg.compareTo("webui_password")) {
-        ESPMega_FRAM.write(EEPROM_ADDRESS_WEBUI_PASSWORD, (uint8_t *)value.c_str(), value.length());
+        ESPMega_FRAM.write(EEPROM_ADDRESS_WEBUI_PASSWORD, (uint8_t *)value.c_str(), value.length()+1);
       }
     }
       set_mqtt_useauth(use_auth);