diff --git a/example/src/main.rs b/example/src/main.rs
index 97c2c39..8dfc0b4 100644
--- a/example/src/main.rs
+++ b/example/src/main.rs
@@ -135,7 +135,7 @@ fn main()
 	);
 
 	gotham::start(ADDR, build_router(chain, pipelines, |route| {
-		route.with_openapi("Users Example", "0.0.1", format!("http://{}", ADDR), |mut route| {
+		route.with_openapi("Users Example".to_owned(), "0.0.1".to_owned(), format!("http://{}", ADDR), |mut route| {
 			route.resource::<Users, _>("users");
 			route.resource::<Auth, _>("auth");
 			route.get_openapi("openapi");
diff --git a/gotham_restful/src/openapi/router.rs b/gotham_restful/src/openapi/router.rs
index 9f5c185..6e52db1 100644
--- a/gotham_restful/src/openapi/router.rs
+++ b/gotham_restful/src/openapi/router.rs
@@ -22,7 +22,7 @@ use log::error;
 use mime::{Mime, APPLICATION_JSON, TEXT_PLAIN};
 use openapiv3::{
 	APIKeyLocation, Components, MediaType, OpenAPI, Operation, Parameter, ParameterData, ParameterSchemaOrContent, PathItem,
-	Paths, ReferenceOr, ReferenceOr::Item, ReferenceOr::Reference, RequestBody as OARequestBody, Response, Responses, Schema,
+	ReferenceOr, ReferenceOr::Item, ReferenceOr::Reference, RequestBody as OARequestBody, Response, Responses, Schema,
 	SchemaKind, SecurityScheme, Server, StatusCode, Type
 };
 use serde::de::DeserializeOwned;
@@ -38,28 +38,19 @@ pub struct OpenapiRouter(OpenAPI);
 
 impl OpenapiRouter
 {
-	pub fn new<Title : ToString, Version : ToString, Url : ToString>(title : Title, version : Version, server_url : Url) -> Self
+	pub fn new(title : String, version : String, url : String) -> Self
 	{
 		Self(OpenAPI {
 			openapi: "3.0.2".to_string(),
 			info: openapiv3::Info {
-				title: title.to_string(),
-				description: None,
-				terms_of_service: None,
-				contact: None,
-				license: None,
-				version: version.to_string()
+				title, version,
+				..Default::default()
 			},
 			servers: vec![Server {
-				url: server_url.to_string(),
-				description: None,
-				variables: None
+				url,
+				..Default::default()
 			}],
-			paths: Paths::new(),
-			components: None,
-			security: Vec::new(),
-			tags: Vec::new(),
-			external_docs: None
+			..Default::default()
 		})
 	}
 
@@ -223,9 +214,7 @@ fn schema_to_content(types : Vec<Mime>, schema : ReferenceOr<Schema>) -> IndexMa
 	{
 		content.insert(ty.to_string(), MediaType {
 			schema: Some(schema.clone()),
-			example: None,
-			examples: IndexMap::new(),
-			encoding: IndexMap::new()
+			..Default::default()
 		});
 	}
 	content
@@ -349,9 +338,6 @@ fn new_operation(
 	
 	Operation {
 		tags: Vec::new(),
-		summary: None,
-		description: None,
-		external_documentation: None,
 		operation_id: None, // TODO
 		parameters: params.into_params(),
 		request_body,
@@ -361,7 +347,7 @@ fn new_operation(
 		},
 		deprecated: false,
 		security,
-		servers: Vec::new()
+		..Default::default()
 	}
 }
 
diff --git a/gotham_restful/src/routing.rs b/gotham_restful/src/routing.rs
index 5a16281..2b0181f 100644
--- a/gotham_restful/src/routing.rs
+++ b/gotham_restful/src/routing.rs
@@ -51,12 +51,9 @@ struct PathExtractor<ID : RefUnwindSafe + Send + 'static>
 #[cfg(feature = "openapi")]
 pub trait WithOpenapi<D>
 {
-	fn with_openapi<F, Title, Version, Url>(&mut self, title : Title, version : Version, server_url : Url, block : F)
+	fn with_openapi<F>(&mut self, title : String, version : String, server_url : String, block : F)
 	where
-		F : FnOnce((&mut D, &mut OpenapiRouter)),
-		Title : ToString,
-		Version : ToString,
-		Url : ToString;
+		F : FnOnce((&mut D, &mut OpenapiRouter));
 }
 
 /// This trait adds the `resource` method to gotham's routing. It allows you to register
@@ -345,12 +342,9 @@ macro_rules! implDrawResourceRoutes {
 			C : PipelineHandleChain<P> + Copy + Send + Sync + 'static,
 			P : RefUnwindSafe + Send + Sync + 'static
 		{
-			fn with_openapi<F, Title, Version, Url>(&mut self, title : Title, version : Version, server_url : Url, block : F)
+			fn with_openapi<F>(&mut self, title : String, version : String, server_url : String, block : F)
 			where
-				F : FnOnce((&mut Self, &mut OpenapiRouter)),
-				Title : ToString,
-				Version : ToString,
-				Url : ToString
+				F : FnOnce((&mut Self, &mut OpenapiRouter))
 			{
 				let mut router = OpenapiRouter::new(title, version, server_url);
 				block((self, &mut router));