diff --git a/test/dune-project2copy b/test/dune-project2copy
new file mode 100644
index 0000000000000000000000000000000000000000..37f995d6492934bb2174bfbda93670ac438e5844
--- /dev/null
+++ b/test/dune-project2copy
@@ -0,0 +1 @@
+(lang dune 3.0)