diff --git a/Makefile b/Makefile
index 7dd70be..263838b 100644
--- a/Makefile
+++ b/Makefile
@@ -32,3 +32,6 @@ push:
 	git add --all
 	git commit -a -s
 	git push
+
+github:
+	@echo "IPv6 only. Do not mirror on github"