diff --git a/lib/server/rest/fs/put.js b/lib/server/rest/fs/put.js
index 82f9a81a..6073d6d6 100644
--- a/lib/server/rest/fs/put.js
+++ b/lib/server/rest/fs/put.js
@@ -30,6 +30,8 @@
             onSave      = Util.exec.with(onDone, 'save'),
             OnMakeDir   = Util.exec.with(onDone, 'make dir');
         
+        Util.checkArgs(arguments, ['query', 'name', 'reqdStream', 'callback']);
+        
         switch(query) {
         default:
             pipe.create(readStream, name, onSave);