diff --git a/Arduino/CanGrow/CanGrow.ino b/Arduino/CanGrow/CanGrow.ino
index c45c301..c9f55b5 100644
--- a/Arduino/CanGrow/CanGrow.ino
+++ b/Arduino/CanGrow/CanGrow.ino
@@ -56,6 +56,15 @@
 #include "CanGrow_SysFunctions.h"
 #include "CanGrow_WebFunctions.h"
 
+// set CANGROW_VER and CANGROW_BUILD if not already done as Compiler Flag
+#ifndef CANGROW_VER
+  #define CANGROW_VER "v0.1.0-dev"
+#endif
+#ifndef CANGROW_BUILD
+  #define CANGROW_BUILD "1a2b3c4f"
+#endif
+
+
 
 /*
  * Setup