diff --git a/Assets/Scripts/LevelEditor/Timeline/SpecialTmeline/VolumeDialog.cs b/Assets/Scripts/LevelEditor/Timeline/SpecialTmeline/VolumeDialog.cs
index dc91a34ea..4bee11880 100644
--- a/Assets/Scripts/LevelEditor/Timeline/SpecialTmeline/VolumeDialog.cs
+++ b/Assets/Scripts/LevelEditor/Timeline/SpecialTmeline/VolumeDialog.cs
@@ -40,6 +40,7 @@ public class VolumeDialog : Dialog
         if (volumeObj != null)
         {
             volumeInput.text = volumeObj.chartEntity["volume"].ToString("F");
+            volumeSlider.value = volumeObj.chartEntity["volume"];
         }
     }