diff --git a/app/views/repositories/show.json.jbuilder b/app/views/repositories/show.json.jbuilder
index 356a024f4..6693d966d 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 @result['size']
+json.size number_to_human_size(@result['size'].to_i)
 json.ssh_url @result['ssh_url']
 json.clone_url @result['clone_url']
 json.default_branch @result['default_branch']