diff --git a/packages/parchment/lib/src/codecs/markdown.dart b/packages/parchment/lib/src/codecs/markdown.dart
index 42dd2c4c..ed621765 100644
--- a/packages/parchment/lib/src/codecs/markdown.dart
+++ b/packages/parchment/lib/src/codecs/markdown.dart
@@ -409,6 +409,14 @@ class _ParchmentMarkdownEncoder extends Converter<ParchmentDocument, String> {
     ParchmentAttribute? currentBlockAttribute;
 
     void handleLine(LineNode node) {
+      if (node.hasBlockEmbed) {
+        if (node.embedNode.value == BlockEmbed.horizontalRule) {
+          _writeHorizontalLineTag(buffer);
+        }
+
+        return;
+      }
+
       for (final attr in node.style.lineAttributes) {
         if (attr.key == ParchmentAttribute.block.key) {
           if (currentBlockAttribute != attr) {
@@ -586,4 +594,8 @@ class _ParchmentMarkdownEncoder extends Converter<ParchmentDocument, String> {
       }
     }
   }
+
+  void _writeHorizontalLineTag(StringBuffer buffer) {
+    buffer.write('---');
+  }
 }