diff --git a/lib/travis/yml/configs/travis/repo.rb b/lib/travis/yml/configs/travis/repo.rb
index d42821a6..e307199a 100644
--- a/lib/travis/yml/configs/travis/repo.rb
+++ b/lib/travis/yml/configs/travis/repo.rb
@@ -25,7 +25,7 @@ def path
               if url_encode(vcs_id.to_s).match(%r{[^/]+%2[fF][^/]+})
                 "repo/#{provider}/#{url_encode(vcs_id)}"
               else
-                "repo_vcs/#{provider}/#{url_encode(vcs_id)}"
+                "repo_vcs/#{provider}/#{url_encode(vcs_id.to_s)}"
               end
             end