diff --git a/src/main/scala/gitbucket/core/service/AccountService.scala b/src/main/scala/gitbucket/core/service/AccountService.scala
index 940063f..ea851b1 100644
--- a/src/main/scala/gitbucket/core/service/AccountService.scala
+++ b/src/main/scala/gitbucket/core/service/AccountService.scala
@@ -38,7 +38,7 @@
       case account if !account.isGroupAccount =>
         account.password match {
           case pbkdf2re(iter, salt, hash) if (pbkdf2_sha256(iter.toInt, salt, password) == hash) => Some(account)
-          case p: String if p == sha1(password) =>
+          case p if p == sha1(password) =>
             updateAccount(account.copy(password = pbkdf2_sha256(password)))
             Some(account)
           case _ => None