diff --git a/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java b/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java
index ca5b804..6fef38f 100644
--- a/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java
+++ b/platform-dal/src/main/java/com/lyms/platform/query/PatientsQuery.java
@@ -857,7 +857,7 @@ public class PatientsQuery extends BaseQuery implements IConvertToNativeQuery {
         if(null!=dueStatus){
             if(0==dueStatus){
                 MongoCondition con =MongoCondition.newInstance();
-                MongoCondition con1 = MongoCondition.newInstance("dueStatus", "0", MongoOper.IS);
+                MongoCondition con1 = MongoCondition.newInstance("dueStatus", 0, MongoOper.IS);
                 MongoCondition con2 = MongoCondition.newInstance("dueStatus", false, MongoOper.EXISTS);
                 c3 = con.orCondition(new MongoCondition[]{con1, con2}).getCriteria();
             }else {