diff --git a/Extensions.md b/Extensions.md
index 0ffce43..53f0049 100644
--- a/Extensions.md
+++ b/Extensions.md
@@ -1,3 +1,5 @@
+# Warning - this wiki page is outdated
+
 G-Earth supports console & GUI extensions, this page is focused on extension structure and development.
 
 Visit https://github.com/sirjonasxx/G-Earth-template-extensions to start from a minimalistic template extension