diff --git a/crates/settings/src/settings.rs b/crates/settings/src/settings.rs
index 9280a20600..63bc5962fa 100644
--- a/crates/settings/src/settings.rs
+++ b/crates/settings/src/settings.rs
@@ -139,7 +139,7 @@ impl Default for JournalSettings {
     }
 }
 
-#[derive(Clone, Debug, Deserialize, JsonSchema)]
+#[derive(Clone, Debug, Serialize, Deserialize, JsonSchema)]
 #[serde(rename_all = "snake_case")]
 pub enum HourFormat {
     Hour12,