diff --git a/client_test.go b/client_test.go
index f541f19745..f1d4c0fe61 100644
--- a/client_test.go
+++ b/client_test.go
@@ -4,11 +4,13 @@ package cloudflare_test
 
 import (
 	"context"
+	"fmt"
 	"net/http"
 	"testing"
 	"time"
 
 	"github.com/cloudflare/cloudflare-go/v2"
+	"github.com/cloudflare/cloudflare-go/v2/internal"
 	"github.com/cloudflare/cloudflare-go/v2/option"
 	"github.com/cloudflare/cloudflare-go/v2/zones"
 )
@@ -21,6 +23,32 @@ func (t *closureTransport) RoundTrip(req *http.Request) (*http.Response, error)
 	return t.fn(req)
 }
 
+func TestUserAgentHeader(t *testing.T) {
+	var userAgent string
+	client := cloudflare.NewClient(
+		option.WithHTTPClient(&http.Client{
+			Transport: &closureTransport{
+				fn: func(req *http.Request) (*http.Response, error) {
+					userAgent = req.Header.Get("User-Agent")
+					return &http.Response{
+						StatusCode: http.StatusOK,
+					}, nil
+				},
+			},
+		}),
+	)
+	client.Zones.New(context.Background(), zones.ZoneNewParams{
+		Account: cloudflare.F(zones.ZoneNewParamsAccount{
+			ID: cloudflare.F("023e105f4ecef8ad9ca31a8372d0c353"),
+		}),
+		Name: cloudflare.F("example.com"),
+		Type: cloudflare.F(zones.ZoneNewParamsTypeFull),
+	})
+	if userAgent != fmt.Sprintf("Cloudflare/Go %s", internal.PackageVersion) {
+		t.Errorf("Expected User-Agent to be correct, but got: %#v", userAgent)
+	}
+}
+
 func TestRetryAfter(t *testing.T) {
 	attempts := 0
 	client := cloudflare.NewClient(
diff --git a/internal/requestconfig/requestconfig.go b/internal/requestconfig/requestconfig.go
index 7f5fc8730d..f946609179 100644
--- a/internal/requestconfig/requestconfig.go
+++ b/internal/requestconfig/requestconfig.go
@@ -23,6 +23,12 @@ import (
 	"github.com/cloudflare/cloudflare-go/v2/internal/apiquery"
 )
 
+func getDefaultHeaders() map[string]string {
+	return map[string]string{
+		"User-Agent": fmt.Sprintf("Cloudflare/Go %s", internal.PackageVersion),
+	}
+}
+
 func getNormalizedOS() string {
 	switch runtime.GOOS {
 	case "ios":
@@ -118,6 +124,9 @@ func NewRequestConfig(ctx context.Context, method string, u string, body interfa
 	}
 
 	req.Header.Set("Accept", "application/json")
+	for k, v := range getDefaultHeaders() {
+		req.Header.Add(k, v)
+	}
 
 	for k, v := range getPlatformProperties() {
 		req.Header.Add(k, v)