diff --git a/lib/models/rules/insert.dart b/lib/models/rules/insert.dart
index 8badac59..debaf71b 100644
--- a/lib/models/rules/insert.dart
+++ b/lib/models/rules/insert.dart
@@ -155,11 +155,8 @@ class AutoExitBlockRule extends InsertRule {
       return null;
     }
 
-    Map<String, dynamic> attributes = cur.attributes ?? <String, dynamic>{};
-    BlockQuoteAttribute blockQuoteAttribute = BlockQuoteAttribute();
-    blockQuoteAttribute.value = null;
-    attributes.addAll(blockQuoteAttribute.toJson()); // TODO
-    return Delta()..retain(index)..retain(1, attributes);
+    // retain(1) should be '\n', set it with no attribute
+    return Delta()..retain(index)..retain(1, null);
   }
 }
 
diff --git a/lib/models/rules/rule.dart b/lib/models/rules/rule.dart
index 592fc2d7..a16a4a89 100644
--- a/lib/models/rules/rule.dart
+++ b/lib/models/rules/rule.dart
@@ -56,6 +56,9 @@ class Rules {
       {int len, Object data, Attribute attribute}) {
     Delta delta = document.toDelta();
     for (var rule in _rules) {
+      if (rule.type != ruleType) {
+        continue;
+      }
       delta =
           rule.apply(delta, index, len: len, data: data, attribute: attribute);
       if (delta != null) {
diff --git a/lib/widgets/proxy.dart b/lib/widgets/proxy.dart
index 975ef7a3..fd7793e7 100644
--- a/lib/widgets/proxy.dart
+++ b/lib/widgets/proxy.dart
@@ -69,7 +69,7 @@ class RenderBaselineProxy extends RenderProxyBox {
       0.0;
 
   @override
-  void performLayout() {
+  performLayout() {
     super.performLayout();
     _prototypePainter.layout();
   }