diff --git a/Readme.md b/Readme.md
index b1019c3358b5cd93b3fffd6e1f5426d65aaadf70..ecf1d8a6c3de8a8f94b1accf0067784a664d1370 100644
--- a/Readme.md
+++ b/Readme.md
@@ -8,6 +8,7 @@ The APIs described in this repository are defined for the following reference po
 * `Or-Vnfm`
 * `Ve-vnfm`
 
+**IMPORTANT: In case of discrepancies the published ETSI Group Specification takes precedence.**
 
 More information at [NFV Solutions wiki](https://nfvwiki.etsi.org/index.php?title=NFV_Solutions).