diff --git a/ATEMtoNRF/ATEMtoNRF.ino b/ATEMtoNRF/ATEMtoNRF.ino
index db99642..c44669c 100644
--- a/ATEMtoNRF/ATEMtoNRF.ino
+++ b/ATEMtoNRF/ATEMtoNRF.ino
@@ -71,7 +71,7 @@ void sendNRF(){
     datasend = (datasend << 1) + tallyLEDstat[i];
   }
   datasend = datasend << (8 - tallyLEDlength);
-  datasend = (datasend << 8) + getChecksum(datasend && 0xFF);
+  datasend = (datasend << 8) + getChecksum(datasend & 0xFF);
   
   radio.writeFast(&datasend, sizeof(datasend));
 }
@@ -90,6 +90,6 @@ boolean dataChanged(){
 
 uint8_t getChecksum(uint8_t data){
   uint8_t checksum = 0;
-  for (int i=8; i<8; i++) checksum += (data >> i) && 1;
+  for (int i=8; i<8; i++) checksum += (data >> i) & 1;
   return checksum;
 }