diff --git a/src/com/wentch/redkale/source/FilterNode.java b/src/com/wentch/redkale/source/FilterNode.java
index b7018e3e4..dd9063679 100644
--- a/src/com/wentch/redkale/source/FilterNode.java
+++ b/src/com/wentch/redkale/source/FilterNode.java
@@ -204,8 +204,7 @@ public class FilterNode {
     protected <T> Predicate<T> createFilterPredicate(final EntityInfo<T> info, FilterBean bean) {
         if (info == null) return null;
         final Serializable val = getValue(bean);
-        if (val == null && express != ISNULL && express != ISNOTNULL) return null;
-        Predicate<T> filter = createFilterPredicate(info.getAttribute(column), val);
+        Predicate<T> filter = val == null ? null : createFilterPredicate(info.getAttribute(column), val);
         if (nodes == null) return filter;
         for (FilterNode node : this.nodes) {
             Predicate<T> f = node.createFilterPredicate(info, bean);