diff --git a/common/flags.aconfig b/common/flags.aconfig
index cadc44f..2e552a1 100644
--- a/common/flags.aconfig
+++ b/common/flags.aconfig
@@ -13,3 +13,10 @@
   description: "This flag controls the forbidden capability API"
   bug: "302997505"
 }
+
+flag {
+  name: "nsd_expired_services_removal"
+  namespace: "android_core_networking"
+  description: "Remove expired services from MdnsServiceCache"
+  bug: "304649384"
+}