diff --git a/ReflexToQ3/libraries.h b/ReflexToQ3/libraries.h
index a0a12de..ca44d42 100644
--- a/ReflexToQ3/libraries.h
+++ b/ReflexToQ3/libraries.h
@@ -39,4 +39,9 @@
 #include <sstream>
 #include <locale>
 
+// Vector access - since the data type has changed from struct to array.
+#define X 0
+#define Y 1
+#define Z 2
+
 #endif
\ No newline at end of file