diff --git a/src/main/java/neatlogic/module/cmdb/utils/VirtualCiSqlBuilder.java b/src/main/java/neatlogic/module/cmdb/utils/VirtualCiSqlBuilder.java
index 66612c5f6b0325f9abed51da411cf700629e2a6b..a11a298479bda69144e9cd2e9e93680cae943311 100644
--- a/src/main/java/neatlogic/module/cmdb/utils/VirtualCiSqlBuilder.java
+++ b/src/main/java/neatlogic/module/cmdb/utils/VirtualCiSqlBuilder.java
@@ -149,7 +149,7 @@ public class VirtualCiSqlBuilder {
             }
             if (CollectionUtils.isNotEmpty(columnList)) {
                 for (String attrName : attrMap.keySet()) {
-                    isExist = false;
+                    boolean isExist = false;
                     for (String columnName : columnList) {
                         if (columnName.equalsIgnoreCase(attrName)) {
                             isExist = true;