diff --git a/src/bin/stub.rs b/src/bin/stub.rs
index c545f56..a77a1a0 100644
--- a/src/bin/stub.rs
+++ b/src/bin/stub.rs
@@ -9,6 +9,8 @@ pub fn main() {
     encode_webm_element(WebmElement::EbmlHead, &mut cursor).unwrap();
     encode_webm_element(WebmElement::Segment, &mut cursor).unwrap();
 
+    encode_webm_element(WebmElement::Tracks(&[]), &mut cursor).unwrap();
+
     encode_webm_element(WebmElement::Cluster, &mut cursor).unwrap();
     encode_webm_element(WebmElement::Timecode(0), &mut cursor).unwrap();
 
diff --git a/src/webm.rs b/src/webm.rs
index 7f2f7a4..52eb318 100644
--- a/src/webm.rs
+++ b/src/webm.rs
@@ -115,6 +115,7 @@ pub fn encode_webm_element<T: Write + Seek>(element: WebmElement, output: &mut T
         WebmElement::Segment => encode_tag_header(SEGMENT_ID, Varint::Unknown, output),
         WebmElement::SeekHead => Ok(()),
         WebmElement::Cues => Ok(()),
+        WebmElement::Tracks(data) => encode_bytes(TRACKS_ID, data, output),
         WebmElement::Cluster => encode_tag_header(CLUSTER_ID, Varint::Unknown, output),
         WebmElement::Timecode(time) => encode_integer(TIMECODE_ID, time, output),
         WebmElement::SimpleBlock {..} => encode_simple_block(element, output),