diff --git a/cmd/client/main.go b/cmd/client/main.go
index b9aef0a..cf0430d 100644
--- a/cmd/client/main.go
+++ b/cmd/client/main.go
@@ -3,12 +3,15 @@ package main
 import (
 	"context"
 	"fmt"
+	"math/rand"
 	"net/http"
 	"os"
 
 	"haberdasher-twirp/haberdasher"
 )
 
+const MaxSize = 12
+
 func main() {
 	var host string = "http://localhost:8080"
 	if len(os.Args) > 1 {
@@ -17,7 +20,7 @@ func main() {
 
 	client := haberdasher.NewHaberdasherProtobufClient(host, &http.Client{})
 
-	hat, err := client.MakeHat(context.Background(), &haberdasher.Size{Inches: 12})
+	hat, err := client.MakeHat(context.Background(), &haberdasher.Size{Inches: int32(rand.Intn(MaxSize))})
 	if err != nil {
 		fmt.Printf("oh no: %v\n", err)
 		os.Exit(1)