diff --git a/Multiprotocol/Multiprotocol.h b/Multiprotocol/Multiprotocol.h
index 8855530..fa05885 100644
--- a/Multiprotocol/Multiprotocol.h
+++ b/Multiprotocol/Multiprotocol.h
@@ -19,7 +19,7 @@
 #define VERSION_MAJOR		1
 #define VERSION_MINOR		3
 #define VERSION_REVISION	4
-#define VERSION_PATCH_LEVEL	37
+#define VERSION_PATCH_LEVEL	38
 
 #define MODE_SERIAL 0
 
diff --git a/Multiprotocol/SLT_ccnrf.ino b/Multiprotocol/SLT_ccnrf.ino
index 3a422e5..37f4de1 100644
--- a/Multiprotocol/SLT_ccnrf.ino
+++ b/Multiprotocol/SLT_ccnrf.ino
@@ -294,7 +294,7 @@ void SLT_init()
 		if(sub_protocol==SLT_V1_4)
 		{
 			memcpy(rx_tx_addr,"\xF4\x71\x8D\x01",SLT_TXID_SIZE);
-			rx_tx_addr[3] += RX_num;
+			rx_tx_addr[2] += RX_num;
 		}
 	#endif
 	SLT_RF_init();