diff --git a/src/Audio/SoundInstance.cs b/src/Audio/SoundInstance.cs
index a2bc213..8788942 100644
--- a/src/Audio/SoundInstance.cs
+++ b/src/Audio/SoundInstance.cs
@@ -151,6 +151,7 @@ namespace MoonWorks.Audio
 
 						case FilterType.LowPass:
 							filterParameters.Type = FAudio.FAudioFilterType.FAudioLowPassFilter;
+							filterParameters.Frequency = 1f;
 							break;
 
 						case FilterType.BandPass:
@@ -159,6 +160,7 @@ namespace MoonWorks.Audio
 
 						case FilterType.HighPass:
 							filterParameters.Type = FAudio.FAudioFilterType.FAudioHighPassFilter;
+							filterParameters.Frequency = 0f;
 							break;
 					}