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 a7d1252..0248a59 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
@@ -232,7 +232,7 @@ public class PatientsQuery extends BaseQuery implements IConvertToNativeQuery{
         boolean isAddStart1 = Boolean.FALSE;
         if (null != birthStart) {
             c = Criteria.where("birth").gte(birthStart);
-            isAddStart = Boolean.TRUE;
+            isAddStart1 = Boolean.TRUE;
         }
 
         if (null != birthEnd) {