diff --git a/source/ngc/fileop.c b/source/ngc/fileop.c
index 06e55e2..34386af 100644
--- a/source/ngc/fileop.c
+++ b/source/ngc/fileop.c
@@ -186,8 +186,10 @@ bool MountFAT(int method)
 			mounted = false;
 		else if(!fatMountSimple(name, disc))
 			mounted = false;
+#ifdef HW_RVL
 		else
 			fatSetReadAhead(rootdir, 6, 64);
+#endif
 	}
 
 	isMounted[method] = mounted;