diff --git a/lib/ArduinoLog/ArduinoLog.h b/lib/ArduinoLog/ArduinoLog.h
index 921a92db..65f945c9 100644
--- a/lib/ArduinoLog/ArduinoLog.h
+++ b/lib/ArduinoLog/ArduinoLog.h
@@ -343,7 +343,7 @@ class Logging {
 #ifndef DISABLE_LOGGING
     int _level[3];
     bool _showLevel[3];
-    Print* _logOutput[3];
+    Print* _logOutput[3] = {NULL,NULL,NULL};
 
     printfunction _prefix = NULL;
     printfunction _suffix = NULL;