diff --git a/src/main/java/cc/baka9/catseedlogin/util/Crypt.java b/src/main/java/cc/baka9/catseedlogin/util/Crypt.java
index f48be22..f4f93a5 100644
--- a/src/main/java/cc/baka9/catseedlogin/util/Crypt.java
+++ b/src/main/java/cc/baka9/catseedlogin/util/Crypt.java
@@ -1,3 +1,5 @@
+package cc.baka9.catseedlogin.util;
+
 import java.nio.charset.StandardCharsets;
 import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;