diff --git a/configs/samples/extensions.conf.sample b/configs/samples/extensions.conf.sample
index 5c98c09e98..cd4cec5fd1 100644
--- a/configs/samples/extensions.conf.sample
+++ b/configs/samples/extensions.conf.sample
@@ -542,6 +542,7 @@ exten => s,n(fail),Hangup()
 
 
 [demo]
+include => stdexten
 ;
 ; We start with what to do when a call first comes in.
 ;