diff --git a/web-infrastructure/src/main/resources/mapper/UserMapper.xml b/web-infrastructure/src/main/resources/mapper/UserMapper.xml
index 57fc1a1..dfecc5a 100644
--- a/web-infrastructure/src/main/resources/mapper/UserMapper.xml
+++ b/web-infrastructure/src/main/resources/mapper/UserMapper.xml
@@ -152,7 +152,7 @@
 
             CASE
                 WHEN LENGTH(FROM_BASE64(u.user_id_card)) > 0 THEN
-                    (YEAR(NOW()) - SUBSTRING(FROM_BASE64(u.user_id_card) 7, 4)) ELSE NULL
+                    (YEAR(NOW()) - SUBSTRING(FROM_BASE64(u.user_id_card), 7, 4)) ELSE NULL
                 END AS age,
 
             cast(substring(FROM_BASE64(u.user_id_card), 7, 8) AS DATE) AS birthday