diff --git a/designer-chart/src/main/java/com/fr/design/chartx/fields/diff/SingleCategoryDataSetFieldsPane.java b/designer-chart/src/main/java/com/fr/design/chartx/fields/diff/SingleCategoryDataSetFieldsPane.java
index 166ef700f..663daecdf 100644
--- a/designer-chart/src/main/java/com/fr/design/chartx/fields/diff/SingleCategoryDataSetFieldsPane.java
+++ b/designer-chart/src/main/java/com/fr/design/chartx/fields/diff/SingleCategoryDataSetFieldsPane.java
@@ -25,10 +25,6 @@ import java.awt.Dimension;
  */
 public class SingleCategoryDataSetFieldsPane
         extends AbstractDataSetFieldsWithSeriesValuePane<MultiCategoryColumnFieldCollection> {
-
-    private UIComboBox categoryPane;
-
-    private CategorySeriesFilterPane filterPane;
     
     private static final int HGAP = 0;
     private static final int VGAP = 6;
@@ -37,6 +33,10 @@ public class SingleCategoryDataSetFieldsPane
     private static final int BOTTOM = 0;
     private static final int RIGHT = 15;
     
+    private UIComboBox categoryPane;
+
+    private CategorySeriesFilterPane filterPane;
+    
     
     public SingleCategoryDataSetFieldsPane() {
     }