diff --git a/README.md b/README.md
index a173880..0dad8c0 100644
--- a/README.md
+++ b/README.md
@@ -31,7 +31,7 @@ List<LngLat> waypoints = [
     final manager = OSRMManager();
     final road = await manager.getRoad(
       waypoints: waypoints,
-      geometrie: Geometries.polyline,
+      geometries: Geometries.polyline,
       steps: true,
       languageCode: "en",
     );
@@ -48,10 +48,10 @@ List<LngLat> waypoints = [
     final manager = OSRMManager();
     final road = await manager.getTrip(
       waypoints: waypoints,
-      roudTrip:true,
-      destination: DestinationGeoPointOption.last,
+      roundTrip:false,
       source: SourceGeoPointOption.first,
-      geometrie: Geometries.polyline,
+      destination: DestinationGeoPointOption.last,
+      geometries: Geometries.polyline,
       steps: true,
       languageCode: "en",
     );
diff --git a/lib/src/osrm_manager.dart b/lib/src/osrm_manager.dart
index ed0301f..5547f78 100644
--- a/lib/src/osrm_manager.dart
+++ b/lib/src/osrm_manager.dart
@@ -44,14 +44,14 @@ class OSRMManager {
     bool alternative = false,
     bool steps = true,
     Overview overview = Overview.full,
-    Geometries geometrie = Geometries.geojson,
+    Geometries geometries = Geometries.geojson,
     String languageCode = "en",
   }) async {
     String path = generatePath(
       waypoints.toWaypoints(),
       steps: steps,
       overview: overview,
-      geometry: geometrie,
+      geometries: geometries,
     );
     path += "&alternatives=$alternative";
 
@@ -74,7 +74,8 @@ class OSRMManager {
   /// [getTrip]
   /// this method used to get route from trip service api
   /// used if you have more that 10 waypoint to generate route will more accurate
-  /// that [getRoad].
+  /// that [getRoad]. Please note that if one sets [roundTrip] to false, then
+  /// [source] and [destination] must be provided.
   Future<Road> getTrip({
     required List<LngLat> waypoints,
     RoadType roadType = RoadType.car,
@@ -83,7 +84,7 @@ class OSRMManager {
     DestinationGeoPointOption destination = DestinationGeoPointOption.any,
     bool steps = true,
     Overview overview = Overview.full,
-    Geometries geometry = Geometries.polyline,
+    Geometries geometries = Geometries.polyline,
     String languageCode = "en",
   }) async {
     if (!roundTrip &&
@@ -99,7 +100,7 @@ class OSRMManager {
       destination: destination,
       steps: steps,
       overview: overview,
-      geometrie: geometry,
+      geometries: geometries,
     );
     final response = await dio.get(urlReq);
     if (response.statusCode == 200) {
@@ -153,14 +154,14 @@ extension OSRMPrivateFunct on OSRMManager {
     RoadType roadType = RoadType.car,
     bool steps = true,
     Overview overview = Overview.full,
-    Geometries geometry= Geometries.polyline,
+    Geometries geometries = Geometries.polyline,
   }) {
     String url =
         "$server/routed-${roadType.value}/${profile.name}/v1/diving/$waypoints";
     var option = "";
     option += "steps=$steps&";
     option += "overview=${overview.value}&";
-    option += "geometries=${geometry.value}";
+    option += "geometries=${geometries.value}";
     return "$url?$option";
   }
 
@@ -173,11 +174,15 @@ extension OSRMPrivateFunct on OSRMManager {
     DestinationGeoPointOption destination = DestinationGeoPointOption.any,
     bool steps = true,
     Overview overview = Overview.full,
-    Geometries geometrie = Geometries.polyline,
+    Geometries geometries = Geometries.polyline,
   }) {
     String baseGeneratedUrl = generatePath(
       waypoints,
+      roadType: roadType,
+      steps: steps,
+      overview: overview,
       profile: Profile.trip,
+      geometries: geometries,
     );
 
     return "$baseGeneratedUrl&source=${source.name}&destination=${destination.name}&roundtrip=$roundTrip";