diff --git a/stepmania/src/RageSound.cpp b/stepmania/src/RageSound.cpp
index c4884c109a..7f234adec6 100644
--- a/stepmania/src/RageSound.cpp
+++ b/stepmania/src/RageSound.cpp
@@ -527,7 +527,7 @@ bool RageSound::GetDataToPlay( int16_t *pBuffer, int iFrames, int &iSoundFrame,
 void RageSound::CommitPlayingPosition( int64_t frameno, int pos, int iGotFrames )
 {
 	m_Mutex.Lock();
-	m_PositionMapping.Insert( frameno, pos, iGotFrames );
+	m_PositionMapping.Insert( frameno, iGotFrames, pos );
 	m_Mutex.Unlock();
 }
 
diff --git a/stepmania/src/RageSoundPosMap.cpp b/stepmania/src/RageSoundPosMap.cpp
index 3f048cf677..60c737146e 100644
--- a/stepmania/src/RageSoundPosMap.cpp
+++ b/stepmania/src/RageSoundPosMap.cpp
@@ -49,7 +49,7 @@ pos_map_queue &pos_map_queue::operator=( const pos_map_queue &rhs )
 	return *this;
 }
 
-void pos_map_queue::Insert( int64_t iSourceFrame, int iDestFrame, int iFrames )
+void pos_map_queue::Insert( int64_t iSourceFrame, int iFrames, int iDestFrame )
 {
 	if( m_pImpl->m_Queue.size() )
 	{
diff --git a/stepmania/src/RageSoundPosMap.h b/stepmania/src/RageSoundPosMap.h
index 03d5bffbf5..64202466ac 100644
--- a/stepmania/src/RageSoundPosMap.h
+++ b/stepmania/src/RageSoundPosMap.h
@@ -13,7 +13,7 @@ public:
 	pos_map_queue &operator=( const pos_map_queue &rhs );
 
 	/* Insert a mapping from iSourceFrame to iDestFrame, containing iFrames. */
-	void Insert( int64_t iSourceFrame, int iDestFrame, int iFrames );
+	void Insert( int64_t iSourceFrame, int iFrames, int iDestFrame );
 
 	/* Return the iDestFrame for the given iSourceFrame. */
 	int64_t Search( int64_t iSourceFrame, bool *bApproximate ) const;