diff --git a/yui_module_info/yui2_devel/config.php b/yui_module_info/yui2_devel/config.php
index ddb5c0c..54a23df 100644
--- a/yui_module_info/yui2_devel/config.php
+++ b/yui_module_info/yui2_devel/config.php
@@ -493,6 +493,10 @@
     ),
     'treeview' => 
     array (
+      'optional' => 
+      array (
+        0 => 'json',
+      ),
       'path' => 'treeview/treeview-min.js',
       'requires' => 
       array (
diff --git a/yui_module_info/yui2_devel/json.txt b/yui_module_info/yui2_devel/json.txt
index 463bcc3..46bd791 100644
--- a/yui_module_info/yui2_devel/json.txt
+++ b/yui_module_info/yui2_devel/json.txt
@@ -1 +1 @@
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