diff --git a/impl/src/layer1/rx.c b/impl/src/layer1/rx.c
index f33b5d9..d90a0f6 100644
--- a/impl/src/layer1/rx.c
+++ b/impl/src/layer1/rx.c
@@ -415,7 +415,7 @@ result_t layer1_rx_process(layer1_rx_t *rx, const float complex *samples, size_t
 					if(symbol_counter == rx->payload_len_symbols) {
 						unsigned int nsyms;
 						unsigned char payload_enc[rx->payload_len_enc_bytes];
-						unsigned char payload[rx->payload_len_bytes];
+						unsigned char payload[rx->payload_len_bytes+1];
 
 						ERR_CHECK_LIQUID(liquid_repack_bytes(
 									symbols_int, modem_get_bps(rx->payload_demod), rx->payload_len_symbols,