diff --git a/plugins/mysql-yum/index.py b/plugins/mysql-yum/index.py
index 9199ae795..9f71ad51d 100755
--- a/plugins/mysql-yum/index.py
+++ b/plugins/mysql-yum/index.py
@@ -2321,7 +2321,7 @@ def installPreInspection(version):
     if not sysName in ('centos',):
         return '仅支持centos'
 
-    if sysName == 'centos' and version == '5.7' and not sysId in ('7'):
+    if sysName == 'centos' and version == '5.7' and sysId != '7':
         return 'mysql5.7 仅支持centos7'
 
     if sysName == 'centos' and version == '8.0' and not sysId in ('7', '8', '9'):