diff --git a/Sources/HTTPWebDriver.swift b/Sources/HTTPWebDriver.swift
index f0091e2..68fd22b 100644
--- a/Sources/HTTPWebDriver.swift
+++ b/Sources/HTTPWebDriver.swift
@@ -13,8 +13,8 @@ public struct HTTPWebDriver: WebDriver {
     // Send a WebDriverRequest to the web driver local service
     // TODO: consider making this function async/awaitable
     @discardableResult
-    public func send<Request>(_ request: Request) throws -> Request.Response where Request: WebDriverRequest {
-        let urlRequest = Self.buildURLRequest(request)
+    public func send<Request: WebDriverRequest>(_ request: Request) throws -> Request.Response {
+        let urlRequest = try buildURLRequest(request)
 
         // Send the request and decode result or error
         let (status, responseData) = try urlRequest.send()
@@ -24,7 +24,7 @@ public struct HTTPWebDriver: WebDriver {
         return try JSONDecoder().decode(Request.Response.self, from: responseData)
     }
 
-    private static func buildURLRequest<Request>(_ request: Request) throws -> URLRequest {
+    private func buildURLRequest<Request: WebDriverRequest>(_ request: Request) throws -> URLRequest {
         var url = rootURL
         for pathComponent in request.pathComponents {
             url.appendPathComponent(pathComponent)
diff --git a/Sources/WebDriverRequest.swift b/Sources/WebDriverRequest.swift
index 9ea0199..ca051b6 100644
--- a/Sources/WebDriverRequest.swift
+++ b/Sources/WebDriverRequest.swift
@@ -13,7 +13,7 @@ public protocol WebDriverRequest {
     var body: Body { get }
 }
 
-extension WebDriverRequest where ResponseValue = CodableNone {
+extension WebDriverRequest where Body == CodableNone {
     var body: Body { .init() }
 }