diff --git a/extensions/irc/js/lib/text-serializer.js b/extensions/irc/js/lib/text-serializer.js
index c314394b053a..1944f7817db3 100644
--- a/extensions/irc/js/lib/text-serializer.js
+++ b/extensions/irc/js/lib/text-serializer.js
@@ -233,7 +233,7 @@ function ts_deserialize()
         }
 
         // Split each line into "command params...".
-        var parts = this._lines[0].match(/^\s*(\w+)(?:\s+(.*))?$/);
+        var parts = this._lines[0].match(/^\s*(\S+)(?:\s+(.*))?$/);
         var command = parts[1];
         var params = parts[2];