diff --git a/vlib/x/x.v b/vlib/x/x.v
new file mode 100644
index 0000000000..10a4b5ea01
--- /dev/null
+++ b/vlib/x/x.v
@@ -0,0 +1,3 @@
+module x
+
+pub const description = 'an empty module, used as a placeholder, for other modules'