diff --git a/core/http/src/header/known_media_types.rs b/core/http/src/header/known_media_types.rs
index b829fe0c..8ace6824 100644
--- a/core/http/src/header/known_media_types.rs
+++ b/core/http/src/header/known_media_types.rs
@@ -41,6 +41,7 @@ macro_rules! known_media_types {
         TAR (is_tar): "tape archive", "application", "x-tar",
         GZIP (is_gzip): "gzipped binary", "application", "gzip",
         MOV (is_mov): "quicktime video", "video", "quicktime",
+        MP3 (is_mp3): "MPEG Audio", "audio", "mpeg",
         MP4 (is_mp4): "MPEG4 Video", "video", "mp4",
         ZIP (is_zip): "ZIP archive", "application", "zip",
         EventStream (is_event_stream): "SSE stream", "text", "event-stream",
@@ -78,6 +79,7 @@ macro_rules! known_extensions {
         "otf" => OTF,
         "woff" => WOFF,
         "woff2" => WOFF2,
+        "mp3" => MP3,
         "mp4" => MP4,
         "mpeg4" => MP4,
         "wasm" => WASM,