diff --git a/README b/README
index 6271800f50d7ee5ec9c42abb001ed821025698db..8ec07977af440ff6a65962e048083e8ca0817ffe 100644
--- a/README
+++ b/README
@@ -10,6 +10,8 @@ The code is partially based on https://code.google.com/p/clamavj/source/browse/t
  https://github.com/vrtadmin/clamav-devel/blob/master/clamdscan/client.c and 
  https://github.com/vrtadmin/clamav-devel/blob/master/clamdscan/proto.c
 
+ Hint: the plugin uses the VirusCheckPlugin interface version 2 now.
+
 and therefore licenced via Apache License Version 2.0. 
 
 Andreas Romeyke