diff --git a/htdocs/BuildSystems.html b/htdocs/BuildSystems.html
index 175c1fa..2a9e9b3 100644
--- a/htdocs/BuildSystems.html
+++ b/htdocs/BuildSystems.html
@@ -495,7 +495,7 @@ module<a name="updateapidocs"></a></h4>
     </li>
 
     <li>
-      Visit <a href="THDLTools_Developers.html">the devevloper's
+      Visit <a href="THDLTools_Developers.html">the developers'
       site</a> and ensure that the four links are all functional.
     </li>