diff --git a/src/dstr-assignment/array-rest-nested-obj-undefined-hole.case b/src/dstr-assignment/array-rest-nested-obj-undefined-hole.case
index 54b078e8ca..7b6f5c0c41 100644
--- a/src/dstr-assignment/array-rest-nested-obj-undefined-hole.case
+++ b/src/dstr-assignment/array-rest-nested-obj-undefined-hole.case
@@ -12,7 +12,9 @@ es6id: 12.14.5.3
 
 //- setup
 var x = null;
-var length;
+// Use the the top-level lexical scope for 'length' to provide compatibility with browsers
+// where length and name are properties of WindowProxy
+let length;
 //- elems
 [...{ 0: x, length }]
 //- vals
diff --git a/src/dstr-assignment/array-rest-nested-obj-undefined-own.case b/src/dstr-assignment/array-rest-nested-obj-undefined-own.case
index 2a6aa15f00..553a8e46bc 100644
--- a/src/dstr-assignment/array-rest-nested-obj-undefined-own.case
+++ b/src/dstr-assignment/array-rest-nested-obj-undefined-own.case
@@ -12,7 +12,9 @@ es6id: 12.14.5.3
 
 //- setup
 var x = null;
-var length;
+// Use the the top-level lexical scope for 'length' to provide compatibility with browsers
+// where length and name are properties of WindowProxy
+let length;
 //- elems
 [...{ 0: x, length }]
 //- vals
diff --git a/src/dstr-assignment/array-rest-nested-obj-undefined.case b/src/dstr-assignment/array-rest-nested-obj-undefined.case
index 200ab543d6..305df52c62 100644
--- a/src/dstr-assignment/array-rest-nested-obj-undefined.case
+++ b/src/dstr-assignment/array-rest-nested-obj-undefined.case
@@ -12,7 +12,9 @@ es6id: 12.14.5.3
 
 //- setup
 var x = null;
-var length;
+// Use the the top-level lexical scope for 'length' to provide compatibility with browsers
+// where length and name are properties of WindowProxy
+let length;
 //- elems
 [...{ 0: x, length }]
 //- vals