diff --git a/test/built-ins/Array/prototype/copyWithin/coerced-values-target.js b/test/built-ins/Array/prototype/copyWithin/coerced-values-target.js
index df6962541e..d7bdbe30d7 100644
--- a/test/built-ins/Array/prototype/copyWithin/coerced-values-target.js
+++ b/test/built-ins/Array/prototype/copyWithin/coerced-values-target.js
@@ -54,3 +54,8 @@ assert.compareArray(
   [0, 1, 2, 3].copyWithin(1.5, 0), [0, 0, 1, 2],
   '[0, 1, 2, 3].copyWithin(1.5, 0) must return [0, 0, 1, 2]'
 );
+
+assert.compareArray(
+  [0, 1, 2, 3].copyWithin({}, 1), [1, 2, 3, 3],
+  '[0, 1, 2, 3].copyWithin({}, 1) must return [1, 2, 3, 3]'
+);
diff --git a/test/built-ins/TypedArray/prototype/copyWithin/coerced-values-target.js b/test/built-ins/TypedArray/prototype/copyWithin/coerced-values-target.js
index 1f20f4ecff..58813a6e65 100644
--- a/test/built-ins/TypedArray/prototype/copyWithin/coerced-values-target.js
+++ b/test/built-ins/TypedArray/prototype/copyWithin/coerced-values-target.js
@@ -89,4 +89,12 @@ testWithTypedArrayConstructors(function(TA) {
     ),
     '1.5 float value coerced to integer 1'
   );
+
+  assert(
+    compareArray(
+      new TA([0, 1, 2, 3]).copyWithin({}, 1),
+      [1, 2, 3, 3]
+    ),
+    'object value coerced to integer 0'
+  );
 });
diff --git a/test/built-ins/TypedArray/prototype/copyWithin/return-abrupt-from-this-out-of-bounds.js b/test/built-ins/TypedArray/prototype/copyWithin/return-abrupt-from-this-out-of-bounds.js
index 5b799f2986..6e9bd2929d 100644
--- a/test/built-ins/TypedArray/prototype/copyWithin/return-abrupt-from-this-out-of-bounds.js
+++ b/test/built-ins/TypedArray/prototype/copyWithin/return-abrupt-from-this-out-of-bounds.js
@@ -29,14 +29,14 @@ testWithTypedArrayConstructors(TA => {
   } catch (_) {}
 
   // no error following grow:
-  array.copyWithin(new TA(), 0);
+  array.copyWithin(0, 0);
 
   try {
     ab.resize(BPE * 3);
   } catch (_) {}
 
   // no error following shrink (within bounds):
-  array.copyWithin(new TA(), 0);
+  array.copyWithin(0, 0);
 
   var expectedError;
   try {
@@ -53,7 +53,7 @@ testWithTypedArrayConstructors(TA => {
   }
 
   assert.throws(expectedError, () => {
-    array.copyWithin(new TA(), 0);
+    array.copyWithin(0, 0);
     throw new Test262Error('copyWithin completed successfully');
   });
 });