diff --git a/src/players/Vimeo.js b/src/players/Vimeo.js
index 6afaedb..4c8dd9c 100644
--- a/src/players/Vimeo.js
+++ b/src/players/Vimeo.js
@@ -68,7 +68,7 @@ export default class Vimeo extends Base {
   postMessage = (method, value) => {
     if (!this.origin) return
     let data = JSON.stringify({ method, value })
-    return this.iframe.contentWindow.postMessage(data, this.origin)
+    return this.iframe.contentWindow && this.iframe.contentWindow.postMessage(data, this.origin)
   }
   render () {
     let style = {