diff --git a/cloud-common-plugin-dynamic/src/main/resources/templates/codetemplate/default/mapper/mapper.ftl b/cloud-common-plugin-dynamic/src/main/resources/templates/codetemplate/default/mapper/mapper.ftl
index 8481cad..d2a8eaa 100644
--- a/cloud-common-plugin-dynamic/src/main/resources/templates/codetemplate/default/mapper/mapper.ftl
+++ b/cloud-common-plugin-dynamic/src/main/resources/templates/codetemplate/default/mapper/mapper.ftl
@@ -203,7 +203,7 @@
             ${r"#{"}${firstLowerTableName}${r"Ids[${index}]}"}
             </foreach>
         </if>
-        <#if isCheckboxExist == 'exist'>
+        <#if isCheckboxExist?? && isCheckboxExist == "exist">
         GROUP BY
             <#list fieldList! as field>
                 <#if field.listShow == 1>