diff --git a/aconfig/Android.bp b/aconfig/Android.bp
index 7828e99..538ae68 100644
--- a/aconfig/Android.bp
+++ b/aconfig/Android.bp
@@ -10,6 +10,7 @@
         "settings_globalintl_flag_declarations.aconfig",
         "settings_apn_flag_declarations.aconfig",
         "settings_onboarding_experience_flag_declarations.aconfig",
+        "settings_telephony_flag_declarations.aconfig",
     ],
 }
 
diff --git a/aconfig/settings_telephony_flag_declarations.aconfig b/aconfig/settings_telephony_flag_declarations.aconfig
new file mode 100644
index 0000000..68e313b
--- /dev/null
+++ b/aconfig/settings_telephony_flag_declarations.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.settings.flags"
+
+flag {
+    name: "remove_key_hide_enable_2g"
+    namespace: "cellular_security"
+    description: "Stop honoring CarrierConfigManager.KEY_HIDE_ENABLE_2G. Allow 2G toggle cannot be hidden from users by carriers."
+    bug: "300248708"
+}