diff --git a/src/plugins/irc-events/link.js b/src/plugins/irc-events/link.js
index 370d9ab4..aec71826 100644
--- a/src/plugins/irc-events/link.js
+++ b/src/plugins/irc-events/link.js
@@ -284,7 +284,7 @@ function emitPreview(client, msg, preview) {
 function getRequestHeaders(headers) {
 	const formattedHeaders = {
 		"User-Agent": "Mozilla/5.0 (compatible; The Lounge IRC Client; +https://github.com/thelounge/thelounge)",
-		Accept: headers.accept || "*/*",
+		"Accept": headers.accept || "*/*",
 	};
 
 	if (headers.language) {