diff --git a/main.go b/main.go
index 2be2323..276ad87 100644
--- a/main.go
+++ b/main.go
@@ -81,7 +81,7 @@ func main() {
 	// and content_type values will be applied to
 	// every webhook request.
 
-	for i, rawurl := range vargs.Urls {
+	for i, rawurl := range vargs.URLs {
 		uri, err := url.Parse(rawurl)
 
 		if err != nil {
diff --git a/types.go b/types.go
index 59805f2..3b56224 100644
--- a/types.go
+++ b/types.go
@@ -2,7 +2,7 @@ package main
 
 // Params represents the valid paramenter options for the webhook plugin.
 type Params struct {
-	Urls        []string          `json:"urls"`
+	URLs        []string          `json:"urls"`
 	Debug       bool              `json:"debug"`
 	Auth        Auth              `json:"auth"`
 	Headers     map[string]string `json:"header"`