diff --git a/DataStruct.h b/DataStruct.h
index 5d42cff..158d1b6 100644
--- a/DataStruct.h
+++ b/DataStruct.h
@@ -29,6 +29,14 @@
 
 #define VERSION	  100
 
+enum StoreMethod
+{
+	RAW,
+	LZ4,
+	CHACHA20,
+	LZ4_CHACHA20
+};
+
 
 //Prgoram title
 #define PROGRAM_TITLE     "eXtendet PAK"