diff --git a/osu.Game/Storyboards/Commands/StoryboardCommandGroup.cs b/osu.Game/Storyboards/Commands/StoryboardCommandGroup.cs
index 02c43c9f60..5bb7ee6acf 100644
--- a/osu.Game/Storyboards/Commands/StoryboardCommandGroup.cs
+++ b/osu.Game/Storyboards/Commands/StoryboardCommandGroup.cs
@@ -30,13 +30,13 @@ namespace osu.Game.Storyboards.Commands
         /// Returns the earliest start time of the commands added to this group.
         /// </summary>
         [JsonIgnore]
-        public double StartTime { get; private set; }
+        public double StartTime { get; private set; } = double.MaxValue;
 
         /// <summary>
         /// Returns the latest end time of the commands added to this group.
         /// </summary>
         [JsonIgnore]
-        public double EndTime { get; private set; }
+        public double EndTime { get; private set; } = double.MinValue;
 
         [JsonIgnore]
         public double Duration => EndTime - StartTime;