diff --git a/api/src/services/trip_tracking.rs b/api/src/services/trip_tracking.rs
index 3d426b9..6189160 100644
--- a/api/src/services/trip_tracking.rs
+++ b/api/src/services/trip_tracking.rs
@@ -17,7 +17,7 @@ pub struct LiveTripJson {
     pub service_id: Option<String>,
     pub trip_headsign: String,
     #[serde(deserialize_with = "de_numstro")]
-    pub direction_id: Optiom<String>,
+    pub direction_id: Option<String>,
     #[serde(deserialize_with = "de_numstr")]
     pub block_id: String,
     pub start_time: Option<String>,