diff --git a/package.json b/package.json
index 80449f5..f781601 100644
--- a/package.json
+++ b/package.json
@@ -36,6 +36,7 @@
   },
   "homepage": "https://github.com/libp2p/js-libp2p-websockets#readme",
   "dependencies": {
+    "class-is": "^1.0.0",
     "interface-connection": "~0.3.2",
     "lodash.includes": "^4.3.0",
     "mafmt": "^4.0.0",
diff --git a/src/index.js b/src/index.js
index 4dd95fa..c73ff77 100644
--- a/src/index.js
+++ b/src/index.js
@@ -2,6 +2,7 @@
 
 const connect = require('pull-ws/client')
 const mafmt = require('mafmt')
+const withIs = require('class-is')
 const includes = require('lodash.includes')
 const Connection = require('interface-connection').Connection
 
@@ -65,4 +66,4 @@ class WebSockets {
   }
 }
 
-module.exports = WebSockets
+module.exports = withIs(WebSockets, { className: 'WebSockets', symbolName: '@libp2p/js-libp2p-websockets/websockets' })