diff --git a/docs-2.0/3.ngql-guide/6.functions-and-expressions/8.predicate.md b/docs-2.0/3.ngql-guide/6.functions-and-expressions/8.predicate.md
index 5cdb876e8a5..f26e936c018 100644
--- a/docs-2.0/3.ngql-guide/6.functions-and-expressions/8.predicate.md
+++ b/docs-2.0/3.ngql-guide/6.functions-and-expressions/8.predicate.md
@@ -85,10 +85,10 @@ nebula> MATCH p = (n:player{name:"LeBron James"})-[:follow]->(m) \
 
 nebula> MATCH (n:player) \
         RETURN exists(n.player.id), n IS NOT NULL;
-+--------------+---------------+
-| exists(n.id) | n IS NOT NULL |
-+--------------+---------------+
-| false        | true          |
++---------------------+---------------+
+| exists(n.player.id) | n IS NOT NULL |
++---------------------+---------------+
+| false               | true          |
 ...
 
 nebula> MATCH (n:player) \