diff --git a/doc/addressbook-sdk.qdoc b/doc/addressbook-sdk.qdoc
index bff44eedded..c60ad27ee06 100644
--- a/doc/addressbook-sdk.qdoc
+++ b/doc/addressbook-sdk.qdoc
@@ -136,7 +136,7 @@
     Now that we have all the files we need, let's move on to designing the user
     interface.
 
-    
+
     \section1 Placing Widgets on the Form
 
     In the \gui{Project Sidebar}, double-click on the \c{addressbook.ui} file.