diff --git a/docarray/array/storage/memory/getsetdel.py b/docarray/array/storage/memory/getsetdel.py
index f48a4f3246e..17fc2d98607 100644
--- a/docarray/array/storage/memory/getsetdel.py
+++ b/docarray/array/storage/memory/getsetdel.py
@@ -15,6 +15,8 @@ class GetSetDelMixin(BaseGetSetDelMixin):
 
     @needs_id2offset_rebuild
     def _del_docs_by_mask(self, mask: Sequence[bool]):
+        if len(mask) < len(self._data):
+            mask = mask + [False for _ in range(len(self._data) - len(mask))]
         self._data = list(itertools.compress(self._data, (not _i for _i in mask)))
 
     @needs_id2offset_rebuild
diff --git a/tests/unit/array/mixins/test_del.py b/tests/unit/array/mixins/test_del.py
index dffd573e85d..52f132624fa 100644
--- a/tests/unit/array/mixins/test_del.py
+++ b/tests/unit/array/mixins/test_del.py
@@ -42,7 +42,7 @@ def test_del_all(docs, to_delete):
     ],
 )
 def test_del_boolean_mask(docs, to_delete, missing_id):
-
+    all_ids = docs[:, 'id']
     # assert each missing_id is present before deleting
     for m_id in missing_id:
         assert m_id in docs[:, 'id']
@@ -52,6 +52,8 @@ def test_del_boolean_mask(docs, to_delete, missing_id):
     # assert each missing_id is NOT present AFTER deleting
     for m_id in missing_id:
         assert m_id not in docs[:, 'id']
+    for m_id in filter(lambda id: id not in missing_id, all_ids):
+        assert m_id in docs[:, 'id']
 
 
 @pytest.mark.parametrize(