diff --git a/src/TinyMqtt.cpp b/src/TinyMqtt.cpp
index 0fb2028..e653599 100644
--- a/src/TinyMqtt.cpp
+++ b/src/TinyMqtt.cpp
@@ -2,7 +2,7 @@
 #include <sstream>
 #include <Streaming.h>
 
-#if 1
+#if TINY_MQTT_DEBUG
 #define debug(what) { Serial << __LINE__ << ' ' << what << endl; delay(100); }
 #else
 #define debug(what) {}
diff --git a/src/TinyMqtt.h b/src/TinyMqtt.h
index 8d0fa54..bb64ede 100644
--- a/src/TinyMqtt.h
+++ b/src/TinyMqtt.h
@@ -4,6 +4,10 @@
 #include <string>
 #include "StringIndexer.h"
 
+#ifndef TINY_MQTT_DEBUG
+#define TINY_MQTT_DEBUG 0
+#endif
+
 enum MqttError
 {
 	MqttOk = 0,