diff --git a/sonoff/xsns_40_pn532_i2c.ino b/sonoff/xsns_40_pn532_i2c.ino
index 6ef9896e6..ec6b959ab 100644
--- a/sonoff/xsns_40_pn532_i2c.ino
+++ b/sonoff/xsns_40_pn532_i2c.ino
@@ -314,6 +314,7 @@ boolean Xsns40(byte function)
         if (pn532_i2c_detected) {
           PN532_ScanForTag();
         }
+        break;
       case FUNC_EVERY_SECOND:
         PN532_Detect();
         break;