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diff --git a/README.md b/README.md
index fff398247..2913c5ae3 100644
--- a/README.md
+++ b/README.md
@@ -21,6 +21,7 @@ Requirements
 
 This code has been run and tested on [Travis](http://travis-ci.org/afimb/chouette2?branch=master) with :
 * Ruby 1.9.3
+* Java 7
 * Postgres 9.x
 * Proj 4.8.0