diff --git a/src/app/IOManager.h b/src/app/IOManager.h
index e6eea4f..72f4bf2 100644
--- a/src/app/IOManager.h
+++ b/src/app/IOManager.h
@@ -1,7 +1,8 @@
 #ifndef IOMANAGER_H
 #define IOMANAGER_H
-#include "definition.h"
+
 #include <PCF8574.h>
+#include "definition.h"
 
 class IOManager
 {