diff --git a/system.json b/system.json
index 2ce361f..cedbcf1 100644
--- a/system.json
+++ b/system.json
@@ -15,7 +15,9 @@
 		}
 	],
 	"url": "https://github.com/Oliver-Akins/foundry.dungeon",
-	"esmodules": [],
+	"esmodules": [
+		"dotdungeon.mjs"
+	],
 	"styles": [],
 	"languages": [
 		{