diff --git a/manifest.webapp b/manifest.webapp
index 42da9006536ea11fa56462b407064458145f79af..2b4cb4e72029c6531da6ba5f8a8253e001b01e87 100644
--- a/manifest.webapp
+++ b/manifest.webapp
@@ -2,7 +2,7 @@
   "name": "Ecolyo",
   "slug": "ecolyo",
   "icon": "icon.svg",
-  "categories": [],
+  "categories": ["energy"],
   "version": "0.1.3",
   "licence": "AGPL-3.0",
   "editor": "Métropole de Lyon",