diff --git a/src/mesh/mesh_network.h b/src/mesh/mesh_network.h
index 2be1480b5..3e77c28d1 100644
--- a/src/mesh/mesh_network.h
+++ b/src/mesh/mesh_network.h
@@ -92,8 +92,6 @@ typedef struct mesh_network_pdu {
 
     // meta data network layer
     uint16_t              netkey_index;
-    // meta data transport layer
-    uint16_t              appkey_index;
     // MESH_NETWORK_PDU_FLAGS
     uint16_t              flags;
 
diff --git a/src/mesh/mesh_upper_transport.c b/src/mesh/mesh_upper_transport.c
index aa62682da..cb235b7c1 100644
--- a/src/mesh/mesh_upper_transport.c
+++ b/src/mesh/mesh_upper_transport.c
@@ -446,7 +446,6 @@ static void mesh_upper_transport_validate_unsegmented_message(void){
 
     // store application / device key index
     mesh_print_hex("AppOrDevKey", message_key->key, 16);
-    incoming_network_pdu_decoded->appkey_index = message_key->appkey_index;
     incoming_message_pdu_singleton.appkey_index = message_key->appkey_index;
 
     // unsegmented message have TransMIC of 32 bit