diff --git a/presentations/geopython2016/index.html b/presentations/geopython2016/index.html
index 0ce0a2e..fae23f0 100644
--- a/presentations/geopython2016/index.html
+++ b/presentations/geopython2016/index.html
@@ -86,7 +86,7 @@ <h3>Types of MSP tools</h3>
     <hr/>
     <p>Designed for different users (programmer, scientist, strategic planner, case officer, public),</p>
     <hr/>
-    <p>To addresse  different stages of the plan</p>
+    <p>To address  different stages of the plan</p>
 </section>
 
 <section>