diff --git a/stamp-vc b/stamp-vc
new file mode 100644
index 0000000000000000000000000000000000000000..093711c197e5bade361b2b9e105fdea2f68594b6
--- /dev/null
+++ b/stamp-vc
@@ -0,0 +1 @@
+Stamp file to show that we are not in a distribution tarball (i.e., dune-autogen.sh needs to be called).