diff --git a/docs/categories/01-Documentation/how-it-works.md b/docs/categories/01-Documentation/how-it-works.md
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-The bidirectional channel between the Socket.IO server (Node.js) and the Socket.IO client (browser, Node.js, or [another programming language](index.md#what-socketio-is)) is established with a [WebSocket connection](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket) whenever possible, and will use HTTP long-polling as fallback.
+The bidirectional channel between the Socket.IO server (Node.js or [another programming language](index.md#server-implementations)) and the Socket.IO client (browser, Node.js, or [another programming language](index.md#client-implementations)) is established with a [WebSocket connection](https://developer.mozilla.org/en-US/docs/Web/API/WebSocket) whenever possible, and will use HTTP long-polling as fallback.
 
 The Socket.IO codebase is split into two distinct layers: