diff --git a/src/data/calendar.rs b/src/data/calendar.rs
index b4d7482..8c31076 100644
--- a/src/data/calendar.rs
+++ b/src/data/calendar.rs
@@ -1,4 +1,5 @@
 use crate::data::Task;
+use crate::data::task::TaskId;
 
 /// A Caldav Calendar
 pub struct Calendar {
diff --git a/src/data/mod.rs b/src/data/mod.rs
index 9e14d79..db9e69c 100644
--- a/src/data/mod.rs
+++ b/src/data/mod.rs
@@ -5,11 +5,11 @@
 use std::sync::Arc;
 
 mod calendar;
-mod tasks;
+mod task;
 mod client;
 
 pub use calendar::Calendar;
-pub use tasks::Task;
+pub use task::Task;
 use client::Client;
 
 /// A Caldav data source
@@ -38,6 +38,10 @@ impl DataSource {
         // TODO: how to handle conflicts?
     }
 
+    pub fn update_changes_to_server(&self) {
+
+    }
+
     pub fn calendars(&self) -> Vec<&Calendar> {
         self.calendars
             .iter()
diff --git a/src/data/tasks.rs b/src/data/task.rs
similarity index 93%
rename from src/data/tasks.rs
rename to src/data/task.rs
index 838e9cb..91011bf 100644
--- a/src/data/tasks.rs
+++ b/src/data/task.rs
@@ -1,8 +1,10 @@
 use uuid::Uuid;
 
+pub type TaskId = Uuid;
+
 /// A to-do task
 pub struct Task {
-    id: Uuid,
+    id: TaskId,
     name: String,
 }