diff --git a/inxi b/inxi
index 64f577c..9716111 100755
--- a/inxi
+++ b/inxi
@@ -4521,7 +4521,7 @@ print_sensors_data()
 									(( fan_count++ ))
 								fi
 								;;
-							[3-9]|1[0-9])
+							[3-9]|[1-9][0-9])
 								if [[ -n ${a_sensors_working[$j]} ]];then
 									fan_number=$(( $j - 2 )) # sys fans start on array key 5
 									# wrap after fan 6 total
@@ -4540,7 +4540,7 @@ print_sensors_data()
 					for (( j=0; j < ${#a_sensors_working[@]}; j++ ))
 					do
 						case $j in
-							[0-9]|1[0-9])
+							[0-9]|[1-9][0-9])
 								if [[ -n ${a_sensors_working[$j]} ]];then
 									fan_number=$(( $j + 1 )) # sys fans start on array key 5
 									# wrap after fan 6 total