diff --git a/stepmania/src/archutils/Win32/USB.cpp b/stepmania/src/archutils/Win32/USB.cpp
index 3765931e1c..90abfac65e 100644
--- a/stepmania/src/archutils/Win32/USB.cpp
+++ b/stepmania/src/archutils/Win32/USB.cpp
@@ -167,7 +167,7 @@ int WindowsFileIO::finish_read( void *p )
     }
 
 	memcpy( p, m_pBuffer, iCnt );
-	return cnt;
+	return iCnt;
 }
 
 int WindowsFileIO::read( void *p )