diff --git a/app.yaml b/app.yaml
index c2c17f4..19dd5e5 100644
--- a/app.yaml
+++ b/app.yaml
@@ -14,4 +14,4 @@ handlers:
 - url: /(|compile|fmt|script\.js)
   script: _go_app
 
-nobuild_files: (solutions|prog)/.*
+nobuild_files: (solutions|content)/.*
diff --git a/content/tour.article b/content/tour.article
index 2a3c96f..064cb83 100644
--- a/content/tour.article
+++ b/content/tour.article
@@ -69,7 +69,7 @@ Click the "next" button or type PageDown to continue.
 #appengine:
 #appengine: The playground uses the latest stable release of Go.
 #appengine: 
-#appengine: .play prog/sandbox.go
+#appengine: .play prog/tour/sandbox.go
 
 * Packages