diff --git a/README.md b/README.md
index fbbda56d5..971a804b0 100644
--- a/README.md
+++ b/README.md
@@ -17,7 +17,7 @@ The following devices are supported:
 - [iTead Sonoff RF](http://sonoff.itead.cc/en/products/sonoff/sonoff-rf)
 - [iTead Sonoff SV](https://www.itead.cc/sonoff-sv.html)
 
-<img src="https://github.com/arendst/arendst.github.io/blob/master/media/sonoff_th.jpg" width="250" align="right">
+<img alt="sonofth" src="https://github.com/arendst/arendst.github.io/blob/master/media/sonoff_th.jpg" width="250" align="right">
 
 - [iTead Sonoff TH10/TH16 with temperature sensor](http://sonoff.itead.cc/en/products/sonoff/sonoff-th)
 - [iTead Sonoff Dual](http://sonoff.itead.cc/en/products/sonoff/sonoff-dual)