diff --git a/CHANGELOG.md b/CHANGELOG.md
index 82033780..fa212f7a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,7 +2,8 @@
 
 -   Upgrade dependencies
 -   #97 Support a Max Queue Size for Buffered Messages
--   #98 Set no delay for the first connection
+-   #94 Set no delay for the first connection
 -   #106 package.json module points to non-existing file
 -   #107 Make isWebSocket check more lenient to support iOS Safari
 -   #102 added startClosed option
+-   #104 fix error event type
diff --git a/reconnecting-websocket.ts b/reconnecting-websocket.ts
index 66c23418..c6e8422e 100644
--- a/reconnecting-websocket.ts
+++ b/reconnecting-websocket.ts
@@ -204,7 +204,7 @@ export default class ReconnectingWebSocket {
     /**
      * An event listener to be called when an error occurs
      */
-    public onerror?: (event: Event) => void = undefined;
+    public onerror?: (event: ErrorEvent) => void = undefined;
 
     /**
      * An event listener to be called when a message is received from the server