diff --git a/packages/extension-horizontal-rule/src/horizontal-rule.ts b/packages/extension-horizontal-rule/src/horizontal-rule.ts
index 680bc275..d2a4b8e9 100644
--- a/packages/extension-horizontal-rule/src/horizontal-rule.ts
+++ b/packages/extension-horizontal-rule/src/horizontal-rule.ts
@@ -70,7 +70,7 @@ export const HorizontalRule = Node.create<HorizontalRuleOptions>({
 
   addInputRules() {
     return [
-      nodeInputRule(/^(?:---|\—-|___\s|\*\*\*\s)$/, this.type),
+      nodeInputRule(/^(?:---|—-|___\s|\*\*\*\s)$/, this.type),
     ]
   },
 })