diff --git a/README.md b/README.md
index 1319758f118711f7baec9681ce5083bd85c70289..220beabfc1dbb7f2c3d816e99deb82557938f7bb 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,9 @@ Icy is developed and maintained by [Biological Image Analysis unit at Institut P
 ## Plugin description
 
 <!-- Short description of goals of package, with descriptive links to the documentation website --> 
-
+Vecmath library for Icy.  
+Vecmath is part of the Java 3D library.  
+**Java3D web site**: http://java3d.org/
         
 A more detailed user documentation can be found on the Vecmath documentation page on the Icy website: http://icy.bioimageanalysis.org/plugin/vecmath-library-for-icy/