diff --git a/docs/docs.md b/docs/docs.md
index c88ecdb..2774cf7 100644
--- a/docs/docs.md
+++ b/docs/docs.md
@@ -813,6 +813,7 @@ details on the type of failure).
 | MAX_RETRANSMIT | 5 | We reached the max retransmission count (typically for naive flood routing) |
 | NO_CHANNEL | 6 | No suitable channel was found for sending this packet (i.e. was requested channel index disabled?) |
 | TOO_LARGE | 7 | The packet was too big for sending (exceeds interface MTU after encoding) |
+| NO_RESPONSE | 8 | The request had want_response set, the request reached the destination node, but no service on that node wants to send a response (possibly due to bad channel permissions) |
 
 
  
diff --git a/mesh.proto b/mesh.proto
index e33f030..2b39922 100644
--- a/mesh.proto
+++ b/mesh.proto
@@ -188,6 +188,12 @@ message Routing {
      * The packet was too big for sending (exceeds interface MTU after encoding)
      */
     TOO_LARGE = 7;
+
+    /*
+     * The request had want_response set, the request reached the destination node, but no service on that node wants to send a response
+     * (possibly due to bad channel permissions)
+     */
+    NO_RESPONSE = 8;
   }
 
   oneof variant {