diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 04bf22cf..431f4eab 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -52,6 +52,10 @@ module ApplicationHelper
     "avatars"
   end
 
+  def replace_bytes_to_b(size_string)
+    return size_string.gsub("Bytes", "B").gsub("bytes", "B").gsub("字节", "B")
+  end
+
   def storage_path
     File.join(Rails.root, "public", "images", relative_path)
   end
diff --git a/app/views/repositories/show.json.jbuilder b/app/views/repositories/show.json.jbuilder
index 6693d966..0e1e1fb8 100644
--- a/app/views/repositories/show.json.jbuilder
+++ b/app/views/repositories/show.json.jbuilder
@@ -29,7 +29,7 @@ json.fork_info do
   end
 end
 
-json.size number_to_human_size(@result['size'].to_i)
+json.size replace_bytes_to_b(number_to_human_size(@result['size'].to_i*1024))
 json.ssh_url @result['ssh_url']
 json.clone_url @result['clone_url']
 json.default_branch @result['default_branch']