diff --git a/designer-base/src/main/java/com/fr/design/data/datapane/connect/SshPane.java b/designer-base/src/main/java/com/fr/design/data/datapane/connect/SshPane.java
index dc62ec59e0..16374bd5c4 100644
--- a/designer-base/src/main/java/com/fr/design/data/datapane/connect/SshPane.java
+++ b/designer-base/src/main/java/com/fr/design/data/datapane/connect/SshPane.java
@@ -250,7 +250,7 @@ public class SshPane extends BasicPane {
                 @Override
                 public void keyReleased(KeyEvent e) {
                     String text = KeyFileUITextField.this.getTextOrigin();
-                    if (text != null) {
+                    if (!StringUtils.isEmpty(text)) {
                         if (text.contains(UPPER)) {
                             text = MUTI_DOT.matcher(text).replaceAll(".");
                             KeyFileUITextField.this.setTextOrigin(text);