diff --git a/extensions/xml/package.json b/extensions/xml/package.json
index e3e9e0474c2..e471964623a 100644
--- a/extensions/xml/package.json
+++ b/extensions/xml/package.json
@@ -8,6 +8,7 @@
 			"id": "xml",
 			"extensions": [
 				".ascx",
+				".atom",
 				".axml",
 				".bpmn",
 				".config",