diff --git a/nicsensor.sh b/nicsensor.sh
index 91844f2..198473c 100755
--- a/nicsensor.sh
+++ b/nicsensor.sh
@@ -252,10 +252,10 @@ parse_nic_slot(){
     esac
 
     if [ $nic_type = "ocp" ];then
-        slot_number=$(echo $nic_slot | cut -c 4)
+        slot_number=$(echo $nic_slot | cut -b 4-)
     else
         if [ $fullname -eq 1 ];then
-            slot_number=$(echo $nic_slot | cut -c 5)
+            slot_number=$(echo $nic_slot | cut -b 5-)
         else
             slot_number=$nic_slot
         fi