diff --git a/src/gprs_rlcmac.cpp b/src/gprs_rlcmac.cpp
index 4f39beeb..c6a91d88 100644
--- a/src/gprs_rlcmac.cpp
+++ b/src/gprs_rlcmac.cpp
@@ -1174,7 +1174,7 @@ int gprs_rlcmac_rcv_block(uint8_t trx, uint8_t ts, uint8_t *data, uint8_t len,
 		LOGP(DRLCMAC, LOGL_NOTICE, "GPRS_RLCMAC_CONTROL_BLOCK_OPT block payload is not supported.\n");
 		break;
 	default:
-		LOGP(DRLCMAC, LOGL_NOTICE, "Unknown RLCMAC block payload.\n");
+		LOGP(DRLCMAC, LOGL_NOTICE, "Unknown RLCMAC block payload(%u).\n", payload);
 		rc = -EINVAL;
 	}