diff --git a/lib/internal/util/comparisons.js b/lib/internal/util/comparisons.js
index 43a8921f657130..905946fdee3f44 100644
--- a/lib/internal/util/comparisons.js
+++ b/lib/internal/util/comparisons.js
@@ -558,11 +558,10 @@ function objEquiv(a, b, strict, keys, memos, iterationType) {
       } else {
         // Array is sparse.
         const keysA = objectKeys(a);
-        i++;
         for (; i < keysA.length; i++) {
           const key = keysA[i];
           if (!hasOwnProperty(b, key) ||
-              !innerDeepEqual(a[key], b[i], strict, memos)) {
+              !innerDeepEqual(a[key], b[key], strict, memos)) {
             return false;
           }
         }
diff --git a/test/parallel/test-assert-deep.js b/test/parallel/test-assert-deep.js
index db93f3b6e717bb..38f3179d404c54 100644
--- a/test/parallel/test-assert-deep.js
+++ b/test/parallel/test-assert-deep.js
@@ -571,9 +571,20 @@ assertNotDeepOrStrict(
   assertDeepAndStrictEqual(m3, m4);
 }
 
-// Handle sparse arrays
-assertDeepAndStrictEqual([1, , , 3], [1, , , 3]);
-assertOnlyDeepEqual([1, , , 3], [1, , , 3, , , ]);
+// Handle sparse arrays.
+{
+  assertDeepAndStrictEqual([1, , , 3], [1, , , 3]);
+  assertOnlyDeepEqual([1, , , 3], [1, , , 3, , , ]);
+  const a = new Array(3);
+  const b = new Array(3);
+  a[2] = true;
+  b[1] = true;
+  assertNotDeepOrStrict(a, b);
+  b[2] = true;
+  assertNotDeepOrStrict(a, b);
+  a[0] = true;
+  assertNotDeepOrStrict(a, b);
+}
 
 // Handle different error messages
 {