diff --git a/src/site/markdown/sources.md b/src/site/markdown/sources.md
index dc5bab215dad5af57726b011cbdf5e66f494a721..1fa44d05f081ff62792764b410f7aa39d8b260ee 100644
--- a/src/site/markdown/sources.md
+++ b/src/site/markdown/sources.md
@@ -41,4 +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`.
+:interrobang:`In both cases, the development version is under the branch develop TO BE COMPLETED`.:interrobang: