diff --git a/src/p25p1_tsbk.c b/src/p25p1_tsbk.c
index f202272..8316780 100644
--- a/src/p25p1_tsbk.c
+++ b/src/p25p1_tsbk.c
@@ -80,7 +80,7 @@ void processTSBK(dsd_opts * opts, dsd_state * state)
     }
 
     //convert tsbk_byte to PDU and send to vPDU handler...may or may not be entirely compatible, 
-    PDU[0] = 0; //convert to MAC_SIGNAL
+    PDU[0] = 07; //P25p1 TSBK Duid 0x07
     PDU[1] = tsbk_byte[0];
     PDU[2] = tsbk_byte[2];
     PDU[3] = tsbk_byte[3];
diff --git a/src/p25p2_vpdu.c b/src/p25p2_vpdu.c
index 6154555..c61e8d5 100644
--- a/src/p25p2_vpdu.c
+++ b/src/p25p2_vpdu.c
@@ -485,7 +485,7 @@ void process_MAC_VPDU(dsd_opts * opts, dsd_state * state, int type, unsigned lon
 	END_PDU:
 	state->p2_is_lcch = 0; 
 	//debug printing
-	if (opts->payload == 1) //print only if not a null type //&& MAC[1] != 0 //&& MAC[2] != 0
+	if (opts->payload == 1 && MAC[1] != 0) //print only if not a null type //&& MAC[1] != 0 //&& MAC[2] != 0
 	{
 		fprintf (stderr, "%s", KCYN);
 		fprintf (stderr, "\n P25 PDU Payload\n  ");