diff --git a/app/helpers/projects_helper.rb b/app/helpers/projects_helper.rb
index 3d5e61d2c18..058233c88ad 100644
--- a/app/helpers/projects_helper.rb
+++ b/app/helpers/projects_helper.rb
@@ -200,7 +200,8 @@ module ProjectsHelper
   end
 
   def repository_size(project = @project)
-    "#{project.repository_size} MB"
+    size_in_bytes = project.repository_size * 1.megabyte
+    number_to_human_size(size_in_bytes, delimiter: ',', precision: 2)
   rescue
     # In order to prevent 500 error
     # when application cannot allocate memory