diff --git a/lib/src/database/indexeddb_box.dart b/lib/src/database/indexeddb_box.dart
index a804e1a0..ba04971b 100644
--- a/lib/src/database/indexeddb_box.dart
+++ b/lib/src/database/indexeddb_box.dart
@@ -166,7 +166,10 @@ class Box<V> {
     txn ??= boxCollection._db.transaction(name, 'readwrite');
     final store = txn.objectStore(name);
     await store.delete(key);
-    _cache.remove(key);
+
+    // Set to null instead remove() so that inside of transactions null is
+    // returned.
+    _cache[key] = null;
     _cachedKeys?.remove(key);
     return;
   }
@@ -183,7 +186,7 @@ class Box<V> {
     final store = txn.objectStore(name);
     for (final key in keys) {
       await store.delete(key);
-      _cache.remove(key);
+      _cache[key] = null;
       _cachedKeys?.remove(key);
     }
     return;
diff --git a/lib/src/database/sqflite_box.dart b/lib/src/database/sqflite_box.dart
index 16e1a9ca..35c9bcec 100644
--- a/lib/src/database/sqflite_box.dart
+++ b/lib/src/database/sqflite_box.dart
@@ -302,7 +302,9 @@ class Box<V> {
       txn.delete(name, where: 'k = ?', whereArgs: [key]);
     }
 
-    _cache.remove(key);
+    // Set to null instead remove() so that inside of transactions null is
+    // returned.
+    _cache[key] = null;
     _cachedKeys?.remove(key);
     return;
   }
@@ -326,7 +328,7 @@ class Box<V> {
     }
 
     for (final key in keys) {
-      _cache.remove(key);
+      _cache[key] = null;
       _cachedKeys?.removeAll(keys);
     }
     return;
diff --git a/test/box_test.dart b/test/box_test.dart
index 2ab4ec3b..5b66514d 100644
--- a/test/box_test.dart
+++ b/test/box_test.dart
@@ -59,6 +59,18 @@ void main() {
       await box.clear();
     });
 
+    test('Box.delete in transaction', () async {
+      final box = collection.openBox<Map>('cats');
+      await box.put('fluffy', data);
+      await box.put('loki', data2);
+      await collection.transaction(() async {
+        await box.delete('fluffy');
+        expect(await box.get('fluffy'), null);
+      });
+      expect(await box.get('fluffy'), null);
+      await box.clear();
+    });
+
     test('Box.deleteAll', () async {
       final box = collection.openBox<Map>('cats');
       await box.put('fluffy', data);