diff --git a/core.txt b/core.txt
index 9010f29db772f4295e6f75b761e5ec1f9cd30e45..a507f17aca345929e349aaf4f3bc19becbb0a177 100644
--- a/core.txt
+++ b/core.txt
@@ -7,10 +7,10 @@ bob.ap
 bob.math
 bob.measure
 bob.db.base
-bob.io.audio
 bob.io.image
 bob.io.video
 bob.io.matlab
+bob.io.audio
 bob.ip.base
 bob.ip.color
 bob.ip.draw