diff --git a/lib/6to5/transformation/transformers/es6-classes.js b/lib/6to5/transformation/transformers/es6-classes.js
index c31d1787b9..73ff53c5f5 100644
--- a/lib/6to5/transformation/transformers/es6-classes.js
+++ b/lib/6to5/transformation/transformers/es6-classes.js
@@ -179,13 +179,6 @@ Class.prototype.pushMethod = function (node) {
   var methodName = node.key;
 
   var kind = node.kind;
-  var mutatorMap = this.instanceMutatorMap;
-  if (node.static) {
-    this.hasStaticMutators = true;
-    mutatorMap = this.staticMutatorMap;
-  } else {
-    this.hasInstanceMutators = true;
-  }
 
   if (kind === "") {
     if (this.isLoose) {
@@ -204,6 +197,14 @@ Class.prototype.pushMethod = function (node) {
     kind = "value";
   }
 
+  var mutatorMap = this.instanceMutatorMap;
+  if (node.static) {
+    this.hasStaticMutators = true;
+    mutatorMap = this.staticMutatorMap;
+  } else {
+    this.hasInstanceMutators = true;
+  }
+
   util.pushMutatorMap(mutatorMap, methodName, kind, node.computed, node);
 };