diff --git a/lib/6to5/transformation/templates/set.js b/lib/6to5/transformation/templates/set.js
index f00cb746a8..e75271d6eb 100644
--- a/lib/6to5/transformation/templates/set.js
+++ b/lib/6to5/transformation/templates/set.js
@@ -4,21 +4,16 @@
   if (desc === undefined) {
     var parent = Object.getPrototypeOf(object);
 
-    if (parent === null) {
-      return;
-    } else {
+    if (parent !== null) {
       return set(parent, property, value, receiver);
     }
   } else if ("value" in desc && desc.writable) {
-    desc.value = value;
-    return;
+    return desc.value = value;
   } else {
     var setter = desc.set;
 
-    if (setter === undefined) {
-      return;
+    if (setter !== undefined) {
+      return setter.call(receiver, value);
     }
-
-    return setter.call(receiver, value);
   }
 });