diff --git a/stepmania/src/RageSoundPosMap.cpp b/stepmania/src/RageSoundPosMap.cpp
index 60c737146e..8c50140028 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 iFrames, int iDestFrame )
+void pos_map_queue::Insert( int64_t iSourceFrame, int iFrames, int64_t iDestFrame )
 {
 	if( m_pImpl->m_Queue.size() )
 	{
diff --git a/stepmania/src/RageSoundPosMap.h b/stepmania/src/RageSoundPosMap.h
index 64202466ac..f3aa36875f 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 iFrames, int iDestFrame );
+	void Insert( int64_t iSourceFrame, int iFrames, int64_t iDestFrame );
 
 	/* Return the iDestFrame for the given iSourceFrame. */
 	int64_t Search( int64_t iSourceFrame, bool *bApproximate ) const;