diff --git a/include/mqtt_config.h b/include/mqtt_config.h
index a8dcf68..15222c4 100644
--- a/include/mqtt_config.h
+++ b/include/mqtt_config.h
@@ -12,7 +12,7 @@
 #define MQTT_MAX_HOST_LEN           64
 #define MQTT_MAX_CLIENT_LEN         32
 #define MQTT_MAX_USERNAME_LEN       32
-#define MQTT_MAX_PASSWORD_LEN       64
+#define MQTT_MAX_PASSWORD_LEN       65
 #define MQTT_MAX_LWT_TOPIC          32
 #define MQTT_MAX_LWT_MSG            128
 #define MQTT_TASK_PRIORITY          5