diff --git a/api/src/com/todoroo/astrid/sync/messages/ClientToServerMessage.java b/api/src/com/todoroo/astrid/sync/messages/ClientToServerMessage.java
deleted file mode 100644
index 1ff1eb390..000000000
--- a/api/src/com/todoroo/astrid/sync/messages/ClientToServerMessage.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.todoroo.astrid.sync.messages;
-
-public interface ClientToServerMessage {
-
-}
diff --git a/api/src/com/todoroo/astrid/sync/messages/ServerToClientMessage.java b/api/src/com/todoroo/astrid/sync/messages/ServerToClientMessage.java
deleted file mode 100644
index 61f4bef86..000000000
--- a/api/src/com/todoroo/astrid/sync/messages/ServerToClientMessage.java
+++ /dev/null
@@ -1,5 +0,0 @@
-package com.todoroo.astrid.sync.messages;
-
-public interface ServerToClientMessage {
-
-}