diff --git a/src/main/resources/web/images/flags/staledesc.png b/src/main/resources/web/images/flags/staledesc.png
new file mode 100644
index 0000000..bb9faf0
Binary files /dev/null and b/src/main/resources/web/images/flags/staledesc.png differ
diff --git a/src/main/resources/web/js/rs/models/relay.js b/src/main/resources/web/js/rs/models/relay.js
index 11d98fc..60316b8 100644
--- a/src/main/resources/web/js/rs/models/relay.js
+++ b/src/main/resources/web/js/rs/models/relay.js
@@ -43,6 +43,9 @@ define([
                 if (flag == "Stable") {
                     output.push([flag, "stable", "This relay is suitable for long-lived circuits."]);
                 }
+                if (flag == "StaleDesc") {
+                    output.push([flag, "staledesc", "This relay should upload a new descriptor because the old one is too old."]);
+                }
                 if (flag == "V2Dir") {
                     output.push([flag, "v2dir", "This relay implements the v2 directory protocol or higher."]);
                 }