diff --git a/package.json b/package.json
index 251bea5..adf1910 100644
--- a/package.json
+++ b/package.json
@@ -26,6 +26,10 @@
   "main": "./dist/extension.js",
   "contributes": {
     "languages": [
+      {
+        "id": "xml",
+        "extensions": [".xsproj"]
+      },
       {
         "id": "xsharp",
         "aliases": [
@@ -38,7 +42,6 @@
           ".xs",
           ".xsc",
           ".xsprg",
-          ".xsproj",
           ".prgx"
         ]
       }