diff --git a/stepmania/src/RageSoundReader_Merge.cpp b/stepmania/src/RageSoundReader_Merge.cpp
index 3f86e0bbcc..2aa9ed4a20 100644
--- a/stepmania/src/RageSoundReader_Merge.cpp
+++ b/stepmania/src/RageSoundReader_Merge.cpp
@@ -23,7 +23,8 @@ RageSoundReader_Merge::~RageSoundReader_Merge()
 		delete *it;
 }
 
-RageSoundReader_Merge::RageSoundReader_Merge( const RageSoundReader_Merge &cpy )
+RageSoundReader_Merge::RageSoundReader_Merge( const RageSoundReader_Merge &cpy ):
+	RageSoundReader(cpy)
 {
 	m_iSampleRate = cpy.m_iSampleRate;
 	m_iChannels = cpy.m_iChannels;