diff --git a/src/ajax/request.js b/src/ajax/request.js
index 4c018d6..7f304e4 100755
--- a/src/ajax/request.js
+++ b/src/ajax/request.js
@@ -50,7 +50,7 @@
         oRequest.status = (oRequest.statusMessages) ? config.status.update : config.status.dontUpdate;
         oRequest.cursor = (oRequest.waitCursor) ? config.cursor.update : config.cursor.dontUpdate;
 
-        // Look for upload parameter
+        // Set upload data in the request.
         upload.initialize(oRequest);
 
         // The request is submitted only if there is no pending requests in the outgoing queue.
@@ -186,4 +186,4 @@
         oRequest.submit && self.submit(oRequest);
     };
 })(jaxon.ajax.request, jaxon.config, jaxon.ajax.parameters, jaxon.ajax.response,
-    jaxon.ajax.callback, jaxon.utils.upload, jaxon.utils.queue);
+    jaxon.ajax.callback, jaxon.ajax.upload, jaxon.utils.queue);
diff --git a/src/utils/upload.js b/src/ajax/upload.js
similarity index 93%
rename from src/utils/upload.js
rename to src/ajax/upload.js
index 0bf75b6..aa37688 100755
--- a/src/utils/upload.js
+++ b/src/ajax/upload.js
@@ -1,5 +1,5 @@
 /**
- * Class: jaxon.utils.upload
+ * Class: jaxon.ajax.upload
  */
 
 (function(self, dom, console) {
@@ -56,4 +56,4 @@
             oRequest.postHeaders['content-type'] = oRequest.contentType;
         }
     }
-})(jaxon.utils.upload, jaxon.utils.dom, console);
+})(jaxon.ajax.upload, jaxon.utils.dom, console);
diff --git a/src/config.js b/src/config.js
index aa43440..4946928 100755
--- a/src/config.js
+++ b/src/config.js
@@ -35,6 +35,7 @@ var jaxon = {
         parameters: {},
         request: {},
         response: {},
+        upload: {},
     },
 
     cmd: {
@@ -56,7 +57,6 @@ var jaxon = {
         queue: {},
         types: {},
         string: {},
-        upload: {},
     },
 
     dom: {},