diff --git a/designer-base/src/main/java/com/fr/design/formula/FormulaPane.java b/designer-base/src/main/java/com/fr/design/formula/FormulaPane.java
index 5b4842cfe..60d324112 100644
--- a/designer-base/src/main/java/com/fr/design/formula/FormulaPane.java
+++ b/designer-base/src/main/java/com/fr/design/formula/FormulaPane.java
@@ -154,7 +154,6 @@ public class FormulaPane extends BasicPane implements KeyListener, UIFormula {
     private FormulaPaneAutoCompletion autoCompletion;
     private DefaultCompletionProvider completionProvider;
     private static final Map<String, String> PARAM_PREFIX_MAP = new HashMap<>();
-    private ExecutorService executorService = Executors.newCachedThreadPool(new NamedThreadFactory("formula-pane-refocus"));
 
     public FormulaPane() {
         initComponents();
@@ -298,6 +297,7 @@ public class FormulaPane extends BasicPane implements KeyListener, UIFormula {
     }
 
     private void refocusInWindow() {
+        ExecutorService executorService = Executors.newCachedThreadPool(new NamedThreadFactory("formula-pane-refocus"));
         executorService.execute(() -> {
             try {
                 Thread.sleep(100);