diff --git a/src/lmic/radio.c b/src/lmic/radio.c
index d6cc9088..a32f0d46 100644
--- a/src/lmic/radio.c
+++ b/src/lmic/radio.c
@@ -1109,7 +1109,7 @@ int radio_init () {
     // some sanity checks, e.g., read version number
     u1_t v = readReg(RegVersion);
 #ifdef CFG_sx1276_radio
-    if(v != 0x12 )
+    if(v != 0x12 & v != 0x13)
         return 0;
 #elif CFG_sx1272_radio
     if(v != 0x22)