diff --git a/app/helpers/repositories_helper.rb b/app/helpers/repositories_helper.rb
index d3a008515..afde12d2c 100644
--- a/app/helpers/repositories_helper.rb
+++ b/app/helpers/repositories_helper.rb
@@ -133,7 +133,7 @@ module RepositoriesHelper
             s_content = s_content.split("#{Rails.root}/")[1]
             # content = content.gsub(s[0], "/#{s_content}")
             s_content = [base_url, "/api/#{owner&.login}/#{repo.identifier}/raw?filepath=#{s_content}&ref=#{ref}"].join
-            case k 
+            case k.to_s 
             when 'ss_src'
               content = content.gsub("src=\"#{s[0]}\"", "src=\"#{s_content}\"")
             when 'ss_src_1'
@@ -145,7 +145,7 @@ module RepositoriesHelper
             path = [owner&.login, repo&.identifier, 'tree', ref, file_path].join("/")
             s_content = File.expand_path(s_content, path)
             s_content = s_content.split("#{Rails.root}/")[1]
-            case k 
+            case k.to_s
             when 'ss_src'
               content = content.gsub("src=\"#{s[0]}\"", "src=\"/#{s_content}\"")
             when 'ss_src_1'