diff --git a/lib/6to5/transformers/let-scoping.js b/lib/6to5/transformers/let-scoping.js
index 19bd70d0cd..bc33a2a1c7 100644
--- a/lib/6to5/transformers/let-scoping.js
+++ b/lib/6to5/transformers/let-scoping.js
@@ -26,16 +26,16 @@ exports.VariableDeclaration = function (node, parent, file) {
     // we're a property key
     if (parent.type === "Property" && parent.key === node) return;
 
-    if (parent.type !== "MemberExpression") {
-      // we aren't in a member expression
-      return id;
-    } else if (parent.type === "MemberExpression" && parent.property === node && parent.computed) {
-      // we're in a member expression but we're a computed property so we're referenced
-      return id;
-    } else if (parent.type === "MemberExpression" && parent.object === node) {
-      // we're in a member expression and we're the object so we're referenced
-      return id;
-    }
+    var isMemberExpression = parent.type === "MemberExpression";
+
+    // we're in a member expression and we're the computed property so we're referenced
+    var isComputedProperty = isMemberExpression && parent.property === node && parent.computed;
+
+    // we're in a member expression and we're the object so we're referenced
+    var isObject = isMemberExpression && parent.object === node;
+
+    // we are referenced
+    if (!isMemberExpression || isComputedProperty || isObject) return id;
   };
 
   var replace = function (node, parent) {