diff --git a/youmubot/src/commands/osu/mod.rs b/youmubot/src/commands/osu/mod.rs
index 8c44e37..4217d7d 100644
--- a/youmubot/src/commands/osu/mod.rs
+++ b/youmubot/src/commands/osu/mod.rs
@@ -1,4 +1,4 @@
-use crate::db::{DBWriteGuard, OsuSavedUsers};
+use crate::db::{DBWriteGuard, OsuSavedUsers, OsuUser};
 use crate::http;
 use serenity::{
     framework::standard::{
@@ -103,7 +103,13 @@ pub fn save(ctx: &mut Context, msg: &Message, mut args: Args) -> CommandResult {
                 .into();
             let mut db = db.borrow_mut()?;
 
-            db.insert(msg.author.id, u.id);
+            db.insert(
+                msg.author.id,
+                OsuUser {
+                    id: u.id,
+                    last_update: chrono::Utc::now(),
+                },
+            );
             msg.reply(
                 &ctx,
                 MessageBuilder::new()
@@ -157,7 +163,7 @@ impl UsernameArg {
         let db = db.borrow()?;
         db.get(&id)
             .cloned()
-            .map(UserID::ID)
+            .map(|u| UserID::ID(u.id))
             .ok_or(Error::from("No saved account found"))
     }
 }
diff --git a/youmubot/src/db/mod.rs b/youmubot/src/db/mod.rs
index 2205df2..e115383 100644
--- a/youmubot/src/db/mod.rs
+++ b/youmubot/src/db/mod.rs
@@ -37,7 +37,7 @@ where
 pub type SoftBans = DB<GuildMap<ServerSoftBans>>;
 
 /// Save the user IDs.
-pub type OsuSavedUsers = DB<HashMap<UserId, u64>>;
+pub type OsuSavedUsers = DB<HashMap<UserId, OsuUser>>;
 
 /// Save each channel's last requested beatmap.
 pub type OsuLastBeatmap = DB<HashMap<ChannelId, (Beatmap, Mode)>>;
@@ -118,3 +118,10 @@ pub struct ImplementedSoftBans {
     /// List of all to-unban people.
     pub periodical_bans: HashMap<UserId, DateTime<Utc>>,
 }
+
+/// An osu! saved user.
+#[derive(Serialize, Deserialize, Debug, Clone)]
+pub struct OsuUser {
+    pub id: u64,
+    pub last_update: DateTime<Utc>,
+}