diff --git a/src/main/java/a8k/app/service/data/FileMgrService.java b/src/main/java/a8k/app/service/data/FileMgrService.java
index 1f298d1..0d5314d 100644
--- a/src/main/java/a8k/app/service/data/FileMgrService.java
+++ b/src/main/java/a8k/app/service/data/FileMgrService.java
@@ -56,7 +56,7 @@ public class FileMgrService {
 
 	public String storageOptReport(String userid, String projName, Integer projId, String subprojName, OptScanResult optScanResult, Double result, String resultUnit) throws IOException {
 		File dir = new File(FilePathConstant.FILE_OPT_REPORT_PATH);
-		dir.mkdir();
+		dir.mkdirs();
 		String fileName = String.format("%s-(%s)-%s-%s.txt", userid, projName, projId, optScanResult.rawData.optType, ZDateUtils.toID(optScanResult.scanDate));
 		String filePath = String.format("%s/%s", FilePathConstant.FILE_OPT_REPORT_PATH, fileName);