diff --git a/source/data_description.rst b/source/data_description.rst
index 3b14680..b84ed9f 100644
--- a/source/data_description.rst
+++ b/source/data_description.rst
@@ -99,7 +99,7 @@ Identifiants
    * - Albret
      - alb
    * - Alençon
-     - alb
+     - alc
    * - Anjou
      - anj
    * - Armagnac