diff --git a/src/main/java/org/apache/ibatis/mapping/ResultMapping.java b/src/main/java/org/apache/ibatis/mapping/ResultMapping.java
index 47c09f90400..bea2a3d9ad5 100644
--- a/src/main/java/org/apache/ibatis/mapping/ResultMapping.java
+++ b/src/main/java/org/apache/ibatis/mapping/ResultMapping.java
@@ -88,6 +88,7 @@ public Builder(ResultMapping otherMapping) {
       resultMapping.columnPrefix = otherMapping.columnPrefix;
       resultMapping.resultSet = otherMapping.resultSet;
       resultMapping.foreignColumn = otherMapping.foreignColumn;
+      resultMapping.lazy = otherMapping.lazy;
     }
 
     public Builder javaType(Class<?> javaType) {