diff --git a/src/crypto/webcrypto-browser.js b/src/crypto/webcrypto-browser.js
index d0899c3..1604636 100644
--- a/src/crypto/webcrypto-browser.js
+++ b/src/crypto/webcrypto-browser.js
@@ -10,5 +10,13 @@ module.exports = function getWebCrypto () {
     }
   }
 
+  if (typeof self !== 'undefined') {
+    require('webcrypto-shim')(self)
+
+    if (self.crypto) {
+      return self.crypto
+    }
+  }
+
   throw new Error('Please use an environment with crypto support')
 }