diff --git a/stepmania/src/RageSoundReader_SDL_Sound.cpp b/stepmania/src/RageSoundReader_SDL_Sound.cpp
index 9a350cbad6..f02df4f1b2 100644
--- a/stepmania/src/RageSoundReader_SDL_Sound.cpp
+++ b/stepmania/src/RageSoundReader_SDL_Sound.cpp
@@ -87,6 +87,8 @@ int SoundReader_SDL_Sound::GetLength_Fast() const
 
 int SoundReader_SDL_Sound::SetPosition(int ms, bool accurate)
 {
+	avail = 0;
+
 	if(ms == 0)
 	{
 		Sound_Rewind(Sample);
diff --git a/stepmania/src/RageSoundReader_Vorbisfile.cpp b/stepmania/src/RageSoundReader_Vorbisfile.cpp
index b5613c4baa..69870bbe40 100644
--- a/stepmania/src/RageSoundReader_Vorbisfile.cpp
+++ b/stepmania/src/RageSoundReader_Vorbisfile.cpp
@@ -78,6 +78,8 @@ int RageSoundReader_Vorbisfile::GetLength_Fast() const
 
 int RageSoundReader_Vorbisfile::SetPosition(int ms, bool accurate)
 {
+	avail = 0;
+
 	int ret = ov_time_seek(vf, ms);
 	if(ret < 0)
 	{