diff --git a/src/main/java/org/embulk/output/sftp/provider/sftp/SftpFileProvider.java b/src/main/java/org/embulk/output/sftp/provider/sftp/SftpFileProvider.java
index 30fc6f3..aa5cfee 100644
--- a/src/main/java/org/embulk/output/sftp/provider/sftp/SftpFileProvider.java
+++ b/src/main/java/org/embulk/output/sftp/provider/sftp/SftpFileProvider.java
@@ -79,7 +79,7 @@ protected FileSystem doCreateFileSystem(final FileName name, final FileSystemOpt
             throw new FileSystemException("vfs.provider.sftp/connect.error", name, e);
         }
         finally {
-            if(session != null && session.isConnected()){
+            if (session != null && session.isConnected()) {
                 session.disconnect();
             }
             UserAuthenticatorUtils.cleanup(authData);