diff --git a/pkg/tool/http/doc.go b/pkg/tool/http/doc.go
index 01c33b3..9941311 100644
--- a/pkg/tool/http/doc.go
+++ b/pkg/tool/http/doc.go
@@ -16,7 +16,7 @@
 //     	url:    string // TODO: make url.URL type
 //
 //     	request: {
-//     		body: *bytes | string
+//     		body?: bytes | string
 //     		header: [string]:  string | [...string]
 //     		trailer: [string]: string | [...string]
 //     	}
diff --git a/pkg/tool/http/http.cue b/pkg/tool/http/http.cue
index 0ab1dd5..1526561 100644
--- a/pkg/tool/http/http.cue
+++ b/pkg/tool/http/http.cue
@@ -26,7 +26,7 @@
 	url:    string // TODO: make url.URL type
 
 	request: {
-		body: *bytes | string
+		body?: bytes | string
 		header: [string]:  string | [...string]
 		trailer: [string]: string | [...string]
 	}
diff --git a/pkg/tool/http/http.go b/pkg/tool/http/http.go
index fa55264..e6651be 100644
--- a/pkg/tool/http/http.go
+++ b/pkg/tool/http/http.go
@@ -18,6 +18,7 @@
 //go:generate gofmt -s -w .
 
 import (
+	"bytes"
 	"io"
 	"io/ioutil"
 	"net/http"
@@ -52,6 +53,8 @@
 			if err != nil {
 				return nil, err
 			}
+		} else {
+			r = bytes.NewReader([]byte(""))
 		}
 		if header, err = parseHeaders(obj, "header"); err != nil {
 			return nil, err
diff --git a/pkg/tool/http/pkg.go b/pkg/tool/http/pkg.go
index d211080..e1683eb 100644
--- a/pkg/tool/http/pkg.go
+++ b/pkg/tool/http/pkg.go
@@ -36,7 +36,7 @@
 		method: string
 		url:    string
 		request: {
-			body: *bytes | string
+			body?: bytes | string
 			header: {
 				[string]: string | [...string]
 			}