diff --git a/src/main/java/classfit/example/classfit/common/util/DriveUtil.java b/src/main/java/classfit/example/classfit/common/util/DriveUtil.java
index e3ea9390..f3b95cdd 100644
--- a/src/main/java/classfit/example/classfit/common/util/DriveUtil.java
+++ b/src/main/java/classfit/example/classfit/common/util/DriveUtil.java
@@ -129,13 +129,6 @@ private static String formatFileSize(long sizeInBytes) {
     }
 
     private static String getFileNameWithoutPrefix(String objectKey) {
-        String fileNameWithoutPrefix = objectKey.replaceFirst("^personal/\\d+/|^shared/\\d+/", "");
-
-        int lastSlashIndex = fileNameWithoutPrefix.lastIndexOf("/");
-        if (lastSlashIndex != -1) {
-            fileNameWithoutPrefix = fileNameWithoutPrefix.substring(lastSlashIndex + 1);
-        }
-
-        return fileNameWithoutPrefix.trim();
+        return objectKey.replaceFirst("^personal/\\d+/|^shared/\\d+/", "");
     }
 }