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 904cdf00b..a4354ee9d 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
@@ -555,6 +555,7 @@ public class FormulaPane extends BasicPane implements KeyListener, UIFormula {
     private void fixFunctionNameList(String functionName) {
         int signOfContinue = 1;
         int indexOfFunction = 0;
+        boolean found = false;
         for (int i = 0; i < functionTypeListModel.size(); i++) {
             int signOfType = 0;
             FunctionGroup functionType = (FunctionGroup) functionTypeListModel.getElementAt(i);
@@ -568,6 +569,7 @@ public class FormulaPane extends BasicPane implements KeyListener, UIFormula {
                         signOfType = 1;
                         signOfContinue = 0;
                         indexOfFunction = k;
+                        found = true;
                     }
                 }
 
@@ -577,8 +579,12 @@ public class FormulaPane extends BasicPane implements KeyListener, UIFormula {
                 }
             }
         }
-        functionNameList.setSelectedIndex(indexOfFunction);
-        functionNameList.ensureIndexIsVisible(indexOfFunction);
+        if (found) {
+            functionNameList.setSelectedIndex(indexOfFunction);
+            functionNameList.ensureIndexIsVisible(indexOfFunction);
+        } else {
+            functionTypeList.setSelectedIndex(0);
+        }
     }
 
     private int getBeginPosition() {