diff --git a/mybatis-flex-core/src/main/java/com/mybatisflex/core/BaseMapper.java b/mybatis-flex-core/src/main/java/com/mybatisflex/core/BaseMapper.java
index 9909fe48..d2ee7087 100644
--- a/mybatis-flex-core/src/main/java/com/mybatisflex/core/BaseMapper.java
+++ b/mybatis-flex-core/src/main/java/com/mybatisflex/core/BaseMapper.java
@@ -740,11 +740,11 @@ public interface BaseMapper<T> {
                 Class<?> mappingType = fieldWrapper.getMappingType();
 
                 Object value;
-                if (Set.class.isAssignableFrom(fieldType)) {
+                if (fieldType.isAssignableFrom(List.class)) {
+                    value = selectListByQueryAs(childQuery, mappingType);
+                } else if (fieldType.isAssignableFrom(Set.class)) {
                     value = selectListByQueryAs(childQuery, mappingType);
                     value = new HashSet<>((Collection<?>) value);
-                } else if (Collection.class.isAssignableFrom(fieldType)) {
-                    value = selectListByQueryAs(childQuery, mappingType);
                 } else if (fieldType.isArray()) {
                     value = selectListByQueryAs(childQuery, mappingType);
                     value = ((List<?>) value).toArray();