diff --git a/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetMngHstEntity.java b/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetMngHstEntity.java
index 332fde9b..50c85e18 100644
--- a/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetMngHstEntity.java
+++ b/src/main/java/com/kamco/cd/kamcoback/postgres/entity/MapSheetMngHstEntity.java
@@ -51,7 +51,7 @@ public class MapSheetMngHstEntity extends CommonDateEntity {
   private String mapSheetPath;
 
   @Column(name = "ref_map_sheet_num")
-  private Long refMapSheetNum;
+  private String refMapSheetNum;
 
   @Column(name = "created_uid")
   private Long createdUid;