diff --git a/src/Audio/AudioDevice.cs b/src/Audio/AudioDevice.cs
index 8892582..5e102bd 100644
--- a/src/Audio/AudioDevice.cs
+++ b/src/Audio/AudioDevice.cs
@@ -214,7 +214,9 @@ namespace MoonWorks.Audio
 			float value;
 			audioTween.Time += delta;
 
-			if (audioTween.Time > audioTween.Duration)
+			var finished = audioTween.Time >= audioTween.Duration;
+
+			if (finished)
 			{
 				value = audioTween.End;
 			}
@@ -252,7 +254,7 @@ namespace MoonWorks.Audio
 					break;
 			}
 
-			return audioTween.Time > audioTween.Duration;
+			return finished;
 		}
 
 		internal void WakeThread()