diff --git a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Decorator.java b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Decorator.java
index 17f2523ed..4a3a2d28d 100644
--- a/HMCL/src/main/java/org/jackhuang/hmcl/ui/Decorator.java
+++ b/HMCL/src/main/java/org/jackhuang/hmcl/ui/Decorator.java
@@ -67,6 +67,8 @@ import org.jackhuang.hmcl.ui.construct.StackContainerPane;
 import org.jackhuang.hmcl.ui.construct.TaskExecutorDialogWizardDisplayer;
 import org.jackhuang.hmcl.ui.wizard.*;
 import org.jackhuang.hmcl.util.Lang;
+import org.jackhuang.hmcl.util.OperatingSystem;
+
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
@@ -167,7 +169,14 @@ public final class Decorator extends StackPane implements TaskExecutorDialogWiza
 
         onCloseButtonAction = new SimpleObjectProperty<>(this, "onCloseButtonAction", Launcher::stopApplication);
 
-        primaryStage.initStyle(StageStyle.UNDECORATED);
+        switch (OperatingSystem.CURRENT_OS) {
+            case OSX:
+                titleContainer.setRight(null);
+                break;
+            default:
+                primaryStage.initStyle(StageStyle.UNDECORATED);
+                break;
+        }
         btnClose.setGraphic(close);
         btnMin.setGraphic(minus);
         btnMax.setGraphic(resizeMax);
diff --git a/HMCL/src/main/resources/assets/fxml/decorator.fxml b/HMCL/src/main/resources/assets/fxml/decorator.fxml
index bb281b2d1..059d2bf3b 100644
--- a/HMCL/src/main/resources/assets/fxml/decorator.fxml
+++ b/HMCL/src/main/resources/assets/fxml/decorator.fxml
@@ -91,7 +91,6 @@
                             <HBox fx:id="navRight" alignment="CENTER_LEFT">
                                 <JFXButton fx:id="refreshNavButton" onMouseClicked="#onRefresh"
                                            styleClass="jfx-decorator-button" ripplerFill="white" />
-                                <Rectangle height="${navBar.height}" width="1" fill="gray"/>
                             </HBox>
                         </right>
                     </BorderPane>
@@ -101,6 +100,7 @@
                         <padding>
                             <Insets topRightBottomLeft="4.0"/>
                         </padding>
+                        <Rectangle height="${navBar.height}" width="1" fill="gray"/>
                         <JFXButton fx:id="btnMin" styleClass="jfx-decorator-button" ripplerFill="white"
                                    onAction="#onMin">
                         </JFXButton>