diff --git a/examples/example_update_order.go b/examples/example_update_order.go
deleted file mode 100644
index 3f2576d..0000000
--- a/examples/example_update_order.go
+++ /dev/null
@@ -1,32 +0,0 @@
-package main
-
-import (
-	"flag"
-	"log"
-
-	"github.com/debyltech/go-snipcart/snipcart"
-)
-
-func main() {
-	snipcartApiKey := flag.String("key", "", "Snipcart API Key")
-	flag.Parse()
-
-	if *snipcartApiKey == "" {
-		log.Fatal("missing -key flag")
-	}
-
-	Client := snipcart.NewClient(*snipcartApiKey)
-
-	updateOrder := snipcart.SnipcartOrderUpdate{
-		Status: snipcart.Delivered,
-	}
-
-	response, err := Client.UpdateOrder("b35990df-c0ca-4014-94de-1caa7bd7bb51", &updateOrder)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	for k, v := range response.Items {
-		log.Printf("%v: %v\n", k, v)
-	}
-}
diff --git a/snipcart/snipcart.go b/snipcart/snipcart.go
index 824e052..1996c0a 100644
--- a/snipcart/snipcart.go
+++ b/snipcart/snipcart.go
@@ -135,7 +135,7 @@ type SnipcartProductCustomField struct {
 	Options      string   `json:"options"`
 	Required     bool     `json:"required"`
 	Value        string   `json:"value"`
-	Operation    int      `json:"operation"`
+	Operation    float64  `json:"operation"`
 	OptionsArray []string `json:"optionsArray"`
 }