diff --git a/stepmania/src/RageSound.cpp b/stepmania/src/RageSound.cpp
index 1aa0517629..df6791af8c 100644
--- a/stepmania/src/RageSound.cpp
+++ b/stepmania/src/RageSound.cpp
@@ -144,6 +144,7 @@ public:
 	unsigned GetNumChannels() const { return 1; }
 	int GetNextSourceFrame() const { return 0; }
 	float GetStreamToSourceRatio() const { return 1.0f; }
+	RString GetError() const { return ""; }
 };