diff --git a/extensions/void/README.txt b/extensions/void/README.txt
new file mode 100644
index 00000000..8e57e1b2
--- /dev/null
+++ b/extensions/void/README.txt
@@ -0,0 +1,3 @@
+This folder is no longer relevant, since Void is no longer just an extension.
+
+See the new Void code in `src/vs/workbench/contrib/void` (and a few other locations - you can just search "Void").