diff --git a/lib/6to5/transformation/transformers/es6-classes.js b/lib/6to5/transformation/transformers/es6-classes.js
index 1bffd19f76..3b5b137cfa 100644
--- a/lib/6to5/transformation/transformers/es6-classes.js
+++ b/lib/6to5/transformation/transformers/es6-classes.js
@@ -1,8 +1,7 @@
-var propertyMethodAssignment = require("./es6-property-method-assignment");
-var nameMethod               = require("../helpers/name-method");
-var traverse                 = require("../../traverse");
-var util                     = require("../../util");
-var t                        = require("../../types");
+var nameMethod = require("../helpers/name-method");
+var traverse   = require("../../traverse");
+var util       = require("../../util");
+var t          = require("../../types");
 
 exports.ClassDeclaration = function (node, parent, file, scope) {
   return new Class(node, file, scope, true).run();
diff --git a/lib/6to5/transformation/transformers/es6-property-method-assignment.js b/lib/6to5/transformation/transformers/es6-property-method-assignment.js
index 99399cb117..30a54102a5 100644
--- a/lib/6to5/transformation/transformers/es6-property-method-assignment.js
+++ b/lib/6to5/transformation/transformers/es6-property-method-assignment.js
@@ -1,5 +1,4 @@
 var nameMethod = require("../helpers/name-method");
-var traverse   = require("../../traverse");
 var util       = require("../../util");
 var t          = require("../../types");
 
diff --git a/lib/6to5/transformation/transformers/optional-bluebird-coroutines.js b/lib/6to5/transformation/transformers/optional-bluebird-coroutines.js
index 08c70ab9d0..5338fa1e1c 100644
--- a/lib/6to5/transformation/transformers/optional-bluebird-coroutines.js
+++ b/lib/6to5/transformation/transformers/optional-bluebird-coroutines.js
@@ -1,5 +1,4 @@
 var remapAsyncToGenerator = require("../helpers/remap-async-to-generator");
-var traverse              = require("../../traverse");
 var t                     = require("../../types");
 
 exports.manipulateOptions = function (opts) {