diff --git a/lib/client.js b/lib/client.js
index f108f93..1988154 100644
--- a/lib/client.js
+++ b/lib/client.js
@@ -444,6 +444,10 @@ export default class Client extends EventTarget {
 				who[k] = msg.params[2 + i];
 				i++;
 			});
+			if (who.account === "0") {
+				// WHOX uses "0" to mean "no account"
+				who.account = null;
+			}
 			return who;
 		default:
 			throw new Error("Not a WHO reply: " + msg.command);