diff --git a/designer-base/src/main/java/com/fr/design/mainframe/DesignerFrame.java b/designer-base/src/main/java/com/fr/design/mainframe/DesignerFrame.java
index 8a03582d0f..6fa9871bc7 100644
--- a/designer-base/src/main/java/com/fr/design/mainframe/DesignerFrame.java
+++ b/designer-base/src/main/java/com/fr/design/mainframe/DesignerFrame.java
@@ -865,6 +865,7 @@ public class DesignerFrame extends JFrame implements JTemplateActionListener, Ta
         JTemplate<?, ?> editingTemplate = HistoryTemplateListCache.getInstance().getCurrentEditingTemplate();
         StringBuilder defaultTitleSB = new StringBuilder();
         defaultTitleSB.append(ProductConstants.APP_NAME);
+        defaultTitleSB.append(" ");
         defaultTitleSB.append(GeneralUtils.getVersion());
         defaultTitleSB.append(" ");
         defaultTitleSB.append(ProductConstants.BRANCH);