diff --git a/src/site/markdown/sources.md b/src/site/markdown/sources.md
index 62a86540efe22f6225fe4759fa0a72333449b255..dc5bab215dad5af57726b011cbdf5e66f494a721 100644
--- a/src/site/markdown/sources.md
+++ b/src/site/markdown/sources.md
@@ -41,3 +41,4 @@ tab in Rugged forge`.
 
      git clone git@gitlab.orekit.org:orekit/rugged.git
   
+`In both cases, the development version is under the branch develop TO BE COMPLETED`.