diff --git a/hooks/post-index-change b/hooks/post-index-change
new file mode 100755
index 0000000..e899f7c
--- /dev/null
+++ b/hooks/post-index-change
@@ -0,0 +1,4 @@
+#!/bin/sh
+CMD='sleep 4'
+OUTPUT=$(eval "$CMD" 2>&1)
+sleep 4