diff --git a/doc/index.txt b/doc/index.txt
index ace219395..c76749e3c 100644
--- a/doc/index.txt
+++ b/doc/index.txt
@@ -3,7 +3,7 @@
 [icon="warning.png"]
 WARNING: Website under construction
 
-This documentation section contains documentation for both users and developpers.
+This documentation section contains documentation for both users and developers.
 
 === User
 
@@ -11,7 +11,7 @@ The user manual containing the full reference for using Lumiera :
 
  * link:manual.html[User Manual]  _(planned)_
 
-=== Developper
+=== Developer
 Informations about the structure of Lumiera, they give an overview on the main components of the application :
 
  * link:design/index.html[Design Documents]