diff --git a/Recette1.md b/Recette1.md
index 0318b37..b3f4187 100644
--- a/Recette1.md
+++ b/Recette1.md
@@ -1,5 +1,5 @@
 ---
-categories: geo=urban topic=food
+categories: geo_urban topic_food chronology_level0
 ...