diff --git a/client.go b/client.go
index 46f5533..53ccb4e 100644
--- a/client.go
+++ b/client.go
@@ -11,7 +11,7 @@ import (
 // TODO: Add timeouts
 type Client struct {
 	http.Client
-	rate uint
+	rate uint64
 }
 
 // Response represents the metrics we want out of an http.Response
@@ -25,12 +25,12 @@ type Response struct {
 }
 
 // NewClient returns an initialized Client
-func NewClient(rate uint) *Client {
+func NewClient(rate uint64) *Client {
 	return &Client{http.Client{}, rate}
 }
 
 // Drill loops over the passed reqs channel and executes each request.
-// It is throttled to the qps specified in the initializer
+// It is throttled to the rate specified in the initializer
 func (c *Client) Drill(reqs chan *http.Request, res chan *Response) {
 	throttle := time.Tick(time.Duration(1e9 / c.rate))
 	for req := range reqs {
diff --git a/main.go b/main.go
index 876e11a..0b89248 100644
--- a/main.go
+++ b/main.go
@@ -16,7 +16,7 @@ func init() {
 
 func main() {
 	var (
-		rate     = flag.Uint("rate", 50, "Requests per second")
+		rate     = flag.Uint64("rate", 50, "Requests per second")
 		targetsf = flag.String("targets", "targets.txt", "Targets file")
 		ordering = flag.String("ordering", "random", "Attack ordering [sequential, random]")
 		duration = flag.Duration("duration", 10*time.Second, "Duration of the test")
@@ -84,8 +84,8 @@ func main() {
 	}
 }
 
-func attack(targets Targets, ordering string, rate uint, duration time.Duration, rep Reporter) {
-	hits := make(chan *http.Request, rate*uint((duration).Seconds()))
+func attack(targets Targets, ordering string, rate uint64, duration time.Duration, rep Reporter) {
+	hits := make(chan *http.Request, rate*uint64((duration).Seconds()))
 	defer close(hits)
 	responses := make(chan *Response, cap(hits))
 	defer close(responses)