diff --git a/src/cli/commands/todo.rs b/src/cli/commands/todo.rs
index d443203..fe8e870 100644
--- a/src/cli/commands/todo.rs
+++ b/src/cli/commands/todo.rs
@@ -271,7 +271,7 @@ mod tests {
         let middle = Utc.with_ymd_and_hms(2021, 1, 1, 0, 0, 0).unwrap();
         let newest = Utc.with_ymd_and_hms(2022, 1, 1, 0, 0, 0).unwrap();
 
-        let mut tasks = vec![
+        let mut tasks = [
             make_task_shard(newest, "newest.md"),
             make_task_shard(oldest, "oldest.md"),
             make_task_shard(middle, "middle.md"),