diff --git a/src/basic-languages/xml/xml.contribution.ts b/src/basic-languages/xml/xml.contribution.ts
index e274e640..ee1105da 100644
--- a/src/basic-languages/xml/xml.contribution.ts
+++ b/src/basic-languages/xml/xml.contribution.ts
@@ -16,6 +16,7 @@ registerLanguage({
 		'.ascx',
 		'.csproj',
 		'.config',
+		'.props',
 		'.wxi',
 		'.wxl',
 		'.wxs',