diff --git a/stepmania/src/RageUtil_CharConversions.cpp b/stepmania/src/RageUtil_CharConversions.cpp
index e43bbe41bd..187e403d28 100644
--- a/stepmania/src/RageUtil_CharConversions.cpp
+++ b/stepmania/src/RageUtil_CharConversions.cpp
@@ -52,7 +52,7 @@ static bool ConvertFromCharset( RString &txt, const char *charset )
 	}
 
 	/* Copy the string into a char* for iconv */
-	char *txtin = const_cast<char*>( txt.data() );
+	ICONV_CONST char *txtin = const_cast<ICONV_CONST char*>( txt.data() );
 	size_t inleft = txt.size();
 
 	/* Create a new string with enough room for the new conversion */