diff --git a/lightrag/prompt.py b/lightrag/prompt.py
index d6d46e1f..f9b8cb1b 100644
--- a/lightrag/prompt.py
+++ b/lightrag/prompt.py
@@ -158,7 +158,7 @@ MANY entities and relationships were missed in the last extraction.
 - entity_name: Name of the entity, use same language as input text. If English, capitalized the name.
 - entity_type: One of the following types: [{entity_types}]
 - entity_description: Comprehensive description of the entity's attributes and activities
-Format each entity as ("entity"{tuple_delimiter}<entity_name>{tuple_delimiter}<entity_type>{tuple_delimiter}<entity_description>
+Format each entity as ("entity"{tuple_delimiter}<entity_name>{tuple_delimiter}<entity_type>{tuple_delimiter}<entity_description>)
 
 2. From the entities identified in step 1, identify all pairs of (source_entity, target_entity) that are *clearly related* to each other.
 For each pair of related entities, extract the following information: