diff --git a/.gitignore b/.gitignore
index 07003bda4c..242433adb1 100644
--- a/.gitignore
+++ b/.gitignore
@@ -123,6 +123,7 @@ contrib/*
 !contrib/CMakeLists.txt
 !contrib/test
 !contrib/azure-cmake
+!contrib/xml2-cmake
 sql
 debug*/
 .env