diff --git a/prod/upload/upload.lua b/prod/upload/upload.lua
index 4584389..b216640 100644
--- a/prod/upload/upload.lua
+++ b/prod/upload/upload.lua
@@ -6,6 +6,11 @@ local chunk_size = 4096
 local form = upload:new(chunk_size)
 uuid.seed()
 
+TaskTypes = {
+    NOOP = 'NOOP',
+    UPLOAD_PICTURE = 'UPLOAD_PICTURE'
+}
+
 local task_server = ngx.var.task_server
 local file_dir = ngx.var.tmp_file_dir
 local file
@@ -68,7 +73,7 @@ while true do
                       ["Content-Type"] = "application/json",
                       ["Authorization"] = ngx.req.get_headers().Authorization
                     },
-                    body = cjson.encode({task_type = 1, data = {images = files}}),
+                    body = cjson.encode({task_type = TaskTypes.UPLOAD_PICTURE, data = {images = files}}),
                 }
         )
         if 201 ~= res.status then