diff --git a/src/matrix-http-api.c b/src/matrix-http-api.c
index c5270bc..0994ebe 100644
--- a/src/matrix-http-api.c
+++ b/src/matrix-http-api.c
@@ -1214,6 +1214,21 @@ i_media_thumbnail(MatrixAPI *api,
     g_free(path);
 }
 
+static void
+i_media_upload(MatrixAPI *api,
+               MatrixAPICallback callback,
+               gpointer user_data,
+               const gchar *content_type,
+               GByteArray *content,
+               GError **error)
+{
+    _send(MATRIX_HTTP_API(api),
+          callback, user_data,
+          CALL_MEDIA,
+          "POST", "upload", NULL, content_type, NULL, content,
+          FALSE, error);
+}
+
 static void
 matrix_http_api_matrix_api_init(MatrixAPIInterface *iface)
 {
@@ -1227,7 +1242,7 @@ matrix_http_api_matrix_api_init(MatrixAPIInterface *iface)
     /* Media */
     iface->media_download = i_media_download;
     iface->media_thumbnail = i_media_thumbnail;
-    iface->media_upload = NULL;
+    iface->media_upload = i_media_upload;
 
     /* Presence */
     iface->get_presence_list = i_get_presence_list;