diff --git a/proto/src/system_messages.proto b/proto/src/system_messages.proto
index 8cecb4b..93fae58 100644
--- a/proto/src/system_messages.proto
+++ b/proto/src/system_messages.proto
@@ -219,6 +219,10 @@
     // Package: com.android.systemui
     NOTE_TV_PIP = 1100;
 
+    // Notify the user that open Wi-Fi networks are available.
+    // Package: android
+    NOTE_NETWORK_AVAILABLE = 17303299;
+
     // Communicate to the user about remote bugreports.
     // Package: android
     NOTE_REMOTE_BUGREPORT = 678432343;