diff --git a/doc/release.notes b/doc/release.notes
index 4d071312fbeff7d4ec090f3c400ff3324c80e449..77526487c19b68f5a8669c716aab44a75041dd0e 100644
--- a/doc/release.notes
+++ b/doc/release.notes
@@ -27,6 +27,8 @@ Notes:
   - TODO: Properly change the cmake scripts to accomodate for ROOT 6 and the 
     automatic switch when building DD4hep. 
 
+    For reference reasons: this commits is revision 1812 + 1813 (DDDetectors)
+
  --------
 | v00-13 |  
  --------