diff --git a/api/api.go b/api/api.go
index dc5e55e189..d20f31ad73 100644
--- a/api/api.go
+++ b/api/api.go
@@ -188,8 +188,14 @@ func getContainerJSON(c *context, w http.ResponseWriter, r *http.Request) {
 		return
 	}
 
+	n, err := json.Marshal(container.Engine)
+	if err != nil {
+		httpError(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
+
 	// insert Node field
-	data = bytes.Replace(data, []byte("\"Name\":\"/"), []byte(fmt.Sprintf("\"Node\":%s,\"Name\":\"/", container.Engine)), -1)
+	data = bytes.Replace(data, []byte("\"Name\":\"/"), []byte(fmt.Sprintf("\"Node\":%s,\"Name\":\"/", n)), -1)
 
 	// insert node IP
 	data = bytes.Replace(data, []byte("\"HostIp\":\"0.0.0.0\""), []byte(fmt.Sprintf("\"HostIp\":%q", container.Engine.IP)), -1)