diff --git a/html/js/lang/calendar-fr.js b/html/js/lang/calendar-fr.js
index 1bfdc94a8..e2ee53d0f 100644
--- a/html/js/lang/calendar-fr.js
+++ b/html/js/lang/calendar-fr.js
@@ -39,7 +39,7 @@ Calendar._SDN = new Array
 ("Dim",
  "Lun",
  "Mar",
- "Mar",
+ "Mer",
  "Jeu",
  "Ven",
  "Sam",