diff --git a/EV/latency_maps/README.md b/EV/latency_maps/README.md
index 2f85b67..110ed56 100644
--- a/EV/latency_maps/README.md
+++ b/EV/latency_maps/README.md
@@ -2,6 +2,10 @@ This folder is used to store historical latency maps
 
 as produced by latencyTEST.py
 
+to store your map history, change control panel toggle to:
+
+    HISTORY = True
+
 <p align="center"> 
-<img src="https://raw.githubusercontent.com/litepresence/extinction-event/master/EV/latency_maps/Screenshot%20from%202019-04-25%2009-23-02.png">
+<img src="https://raw.githubusercontent.com/litepresence/extinction-event/master/EV/latency_maps/map.png">
 </p>