diff --git a/src/main/java/com/kamco/cd/kamcoback/postgres/core/MapSheetMngCoreService.java b/src/main/java/com/kamco/cd/kamcoback/postgres/core/MapSheetMngCoreService.java
index e3ec0ad4..91c4739c 100644
--- a/src/main/java/com/kamco/cd/kamcoback/postgres/core/MapSheetMngCoreService.java
+++ b/src/main/java/com/kamco/cd/kamcoback/postgres/core/MapSheetMngCoreService.java
@@ -323,6 +323,12 @@ public class MapSheetMngCoreService {
     }
   }
 
+  /**
+   * geojson 파일명 Suffix
+   *
+   * @param detectOption
+   * @return
+   */
   private String buildOptionSuffix(String detectOption) {
     if (DetectOption.EXCL.getId().equals(detectOption)) return "_EXCL";
     if (DetectOption.PREV.getId().equals(detectOption)) return "_PREV";