diff --git a/app/services/cnmoocs_service.rb b/app/services/cnmoocs_service.rb
index 9ec02bfd..3161eeac 100644
--- a/app/services/cnmoocs_service.rb
+++ b/app/services/cnmoocs_service.rb
@@ -115,7 +115,7 @@ class CnmoocsService
   end
 
   def source_url(params)
-    shixun = Shixun.find_by_identifier(params[:resouceId])
+    shixun = Shixun.find_by_id(params[:resouceId])
     if shixun.blank?
       return { error: -1, messages: '资源不存在' }
     end