diff --git a/disco/client.go b/disco/client.go
index fc8f2a95..b88b8363 100644
--- a/disco/client.go
+++ b/disco/client.go
@@ -8,12 +8,9 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net/http"
-	"runtime"
 )
 
-// Nodes represents a set of nodes currently registered at the configured Discovery URL.
-type Nodes []string
-
+// DiscoResponse represents the response returned by a Discovery Service.
 type DiscoResponse struct {
 	CreatedAt string   `json:"created_at"`
 	DiscoID   string   `json:"disco_id"`
@@ -41,9 +38,7 @@ func (c *Client) URL() string {
 // address.
 func (c *Client) Register(id, addr string) (*DiscoResponse, error) {
 	m := map[string]string{
-		"addr":   addr,
-		"GOOS":   runtime.GOOS,
-		"GOARCH": runtime.GOARCH,
+		"addr": addr,
 	}
 	b, err := json.Marshal(m)
 	if err != nil {
diff --git a/disco/client_test.go b/disco/client_test.go
index 2f25febe..0e931def 100644
--- a/disco/client_test.go
+++ b/disco/client_test.go
@@ -6,7 +6,6 @@ import (
 	"io/ioutil"
 	"net/http"
 	"net/http/httptest"
-	"runtime"
 	"testing"
 )
 
@@ -92,12 +91,6 @@ func Test_ClientRegisterRequestOK(t *testing.T) {
 		if m["addr"] != "http://127.0.0.1" {
 			t.Fatalf("incorrect join address supplied by client: %s", m["addr"])
 		}
-		if m["GOOS"] != runtime.GOOS {
-			t.Fatalf("incorrect GOOS supplied by client: %s", m["GOOS"])
-		}
-		if m["GOARCH"] != runtime.GOARCH {
-			t.Fatalf("incorrect GOOS supplied by client: %s", m["GOARCH"])
-		}
 
 		fmt.Fprintln(w, `{"created_at": "2017-02-17 04:49:05.079125", "disco_id": "68d6c7cc-f4cc-11e6-a170-2e79ea0be7b1", "nodes": ["http://127.0.0.1"]}`)
 	}))