diff --git a/src/model/error_response.rs b/src/model/error_response.rs
new file mode 100644
index 0000000..a1a6bd6
--- /dev/null
+++ b/src/model/error_response.rs
@@ -0,0 +1,19 @@
+//! A model for the error response.
+
+use serde::Deserialize;
+
+/// An error response.
+#[derive(Clone, Debug, Deserialize)]
+#[non_exhaustive]
+pub struct ErrorResponse {
+    /// The error message.
+    ///
+    /// e.g. "No such user! | Either you mistyped something, or the account no longer exists."
+    pub msg: Option<String>,
+}
+
+impl AsRef<ErrorResponse> for ErrorResponse {
+    fn as_ref(&self) -> &Self {
+        self
+    }
+}
diff --git a/src/model/mod.rs b/src/model/mod.rs
index 90f6115..8e51b70 100644
--- a/src/model/mod.rs
+++ b/src/model/mod.rs
@@ -3,6 +3,7 @@
 pub mod achievement;
 pub mod achievement_info;
 pub mod cache;
+pub mod error_response;
 pub mod labs;
 pub mod leaderboard;
 pub mod league_rank;