diff --git a/src/main/java/neatlogic/module/cmdb/matrix/handler/CiDataSourceHandler.java b/src/main/java/neatlogic/module/cmdb/matrix/handler/CiDataSourceHandler.java
index 60a46fc131b9105e6cb60bb40286ef4e9661ccdf..1891e7644171e577cf7f65a9e5346b6f26fabc0b 100644
--- a/src/main/java/neatlogic/module/cmdb/matrix/handler/CiDataSourceHandler.java
+++ b/src/main/java/neatlogic/module/cmdb/matrix/handler/CiDataSourceHandler.java
@@ -1048,9 +1048,9 @@ public class CiDataSourceHandler extends MatrixDataSourceHandlerBase {
     private AttrFilterVo convertAttrFilter(AttrVo attrVo, String expression, List<String> valueList) {
         AttrFilterVo attrFilterVo = new AttrFilterVo();
         attrFilterVo.setAttrId(attrVo.getId());
-        attrFilterVo.setExpression(expression);
         if (Objects.equals(expression, SearchExpression.NULL.getExpression())
                 || Objects.equals(expression, SearchExpression.NOTNULL.getExpression())) {
+            attrFilterVo.setExpression(expression);
             return attrFilterVo;
         }
         if (StringUtils.isBlank(expression)) {
@@ -1102,6 +1102,7 @@ public class CiDataSourceHandler extends MatrixDataSourceHandlerBase {
         } else {
             attrFilterVo.setValueList(valueList);
         }
+        attrFilterVo.setExpression(expression);
         return attrFilterVo;
     }