diff --git a/modules/wiki/wiki.model.php b/modules/wiki/wiki.model.php
index d630ba4a0..3ba2ed7b9 100644
--- a/modules/wiki/wiki.model.php
+++ b/modules/wiki/wiki.model.php
@@ -28,8 +28,11 @@
             $oModuleModel = &getModel('module');
 
             $mid = Context::get('mid');
+
             $cache_file = sprintf('%sfiles/cache/wiki/%d.xml', _XE_PATH_,$this->module_srl);
-            FileHandler::writeFile($cache_file, $this->loadWikiTreeList($this->module_srl));
+            if($this->grant->write_document || !file_exists($cache_file)) {
+                 FileHandler::writeFile($cache_file, $this->loadWikiTreeList($this->module_srl));
+            }
 
             print FileHandler::readFile($cache_file);
             Context::close();