diff --git a/ftpwriter/src/main/java/com/alibaba/datax/plugin/writer/ftpwriter/util/SftpHelperImpl.java b/ftpwriter/src/main/java/com/alibaba/datax/plugin/writer/ftpwriter/util/SftpHelperImpl.java
index 55087213..dd955cc3 100644
--- a/ftpwriter/src/main/java/com/alibaba/datax/plugin/writer/ftpwriter/util/SftpHelperImpl.java
+++ b/ftpwriter/src/main/java/com/alibaba/datax/plugin/writer/ftpwriter/util/SftpHelperImpl.java
@@ -7,6 +7,7 @@ import java.util.Properties;
 import java.util.Set;
 import java.util.Vector;
 
+import org.apache.commons.io.FilenameUtils;
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.slf4j.Logger;
diff --git a/ftpwriter/src/main/java/com/alibaba/datax/plugin/writer/ftpwriter/util/StandardFtpHelperImpl.java b/ftpwriter/src/main/java/com/alibaba/datax/plugin/writer/ftpwriter/util/StandardFtpHelperImpl.java
index 116603a2..3472ff27 100644
--- a/ftpwriter/src/main/java/com/alibaba/datax/plugin/writer/ftpwriter/util/StandardFtpHelperImpl.java
+++ b/ftpwriter/src/main/java/com/alibaba/datax/plugin/writer/ftpwriter/util/StandardFtpHelperImpl.java
@@ -7,6 +7,7 @@ import java.net.UnknownHostException;
 import java.util.HashSet;
 import java.util.Set;
 
+import org.apache.commons.io.FilenameUtils;
 import org.apache.commons.io.IOUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.commons.net.ftp.FTPClient;