diff --git a/src/device.c b/src/device.c
index 73bcc8f..fcb2378 100644
--- a/src/device.c
+++ b/src/device.c
@@ -4792,7 +4792,7 @@ bool device_attach_att(struct btd_device *dev, GIOChannel *io)
 	}
 
 	dev->att_mtu = MIN(mtu, BT_ATT_MAX_LE_MTU);
-	attrib = g_attrib_new(io, dev->att_mtu, false);
+	attrib = g_attrib_new(io, BT_ATT_DEFAULT_LE_MTU, false);
 	if (!attrib) {
 		error("Unable to create new GAttrib instance");
 		return false;