diff --git a/src/main/java/com/navi/infra/portal/util/FlatMapUtil.java b/src/main/java/com/navi/infra/portal/util/FlatMapUtil.java
index db5411db..d5e3f0d6 100644
--- a/src/main/java/com/navi/infra/portal/util/FlatMapUtil.java
+++ b/src/main/java/com/navi/infra/portal/util/FlatMapUtil.java
@@ -74,4 +74,4 @@ public final class FlatMapUtil {
     private static String getKey(final String root, final int index) {
         return root + "/" + index;
     }
-}
\ No newline at end of file
+}