diff --git a/lib/6to5/transformation/transformers/es6-default-parameters.js b/lib/6to5/transformation/transformers/es6-parameters.default.js
similarity index 100%
rename from lib/6to5/transformation/transformers/es6-default-parameters.js
rename to lib/6to5/transformation/transformers/es6-parameters.default.js
diff --git a/lib/6to5/transformation/transformers/es6-rest-parameters.js b/lib/6to5/transformation/transformers/es6-parameters.rest.js
similarity index 100%
rename from lib/6to5/transformation/transformers/es6-rest-parameters.js
rename to lib/6to5/transformation/transformers/es6-parameters.rest.js