diff --git a/src/requests.c b/src/requests.c
index a9a8aa7..ca02893 100644
--- a/src/requests.c
+++ b/src/requests.c
@@ -337,15 +337,21 @@ int facilities_request_single_message(void *responder, FacilitiesMessageRequest_
         npr->transport.choice.btp.btpType = BTPType_btpB;
 
         npr->id = id;
-
         npr->data.buf = malloc(2048);
-        asn_enc_rval_t enc = uper_encode_to_buffer(its_msg_def, NULL, its_msg, npr->data.buf, 2048);
-        if (enc.encoded == -1) {
-            log_error("failed encoding ITS message into UPER (%s)", enc.failed_type->name);
-            rv = 1;
-            goto cleanup;
+
+        asn_enc_rval_t enc;
+        if (process_msg) {
+            enc = uper_encode_to_buffer(its_msg_def, NULL, its_msg, npr->data.buf, 2048);
+            if (enc.encoded == -1) {
+                log_error("failed encoding ITS message into UPER (%s)", enc.failed_type->name);
+                rv = 1;
+                goto cleanup;
+            }
+            npr->data.size = (enc.encoded + 7) / 8;
+        } else {
+            memcpy(npr->data.buf, frm->data.buf, frm->data.size);
+            npr->data.size = frm->data.size;
         }
-        npr->data.size = (enc.encoded + 7) / 8;
 
         npr->network.choice.gn.destinationAddress.buf = malloc(6);
         for (int i = 0; i < 6; ++i)