diff --git a/check_uptime.sh b/check_uptime.sh
index b5ae57e..3dd1fab 100755
--- a/check_uptime.sh
+++ b/check_uptime.sh
@@ -10,14 +10,16 @@ if uname | grep -q "BSD"; then
   total_uptime_seconds=$(($(date +%s) - boot_time_seconds))
 else
   total_uptime_seconds=$(cat /proc/uptime | awk '{print $1}')
-  # echo "UNKNOWN: Unsupported system"
-  # exit 3
+  total_uptime_seconds=$(printf "%.0f" "${total_uptime_seconds}")
+#else
+#   echo "UNKNOWN: Unsupported system"
+#   exit 3
 fi
 
 # Calculate uptime in days, hours, minutes, and seconds
 uptime_days=$((total_uptime_seconds / 86400))
-uptime_hours=$(( (total_uptime_seconds % 86400) / 3600 ))
-uptime_minutes=$(( (total_uptime_seconds % 3600) / 60 ))
+uptime_hours=$(((total_uptime_seconds % 86400) / 3600))
+uptime_minutes=$(((total_uptime_seconds % 3600) / 60))
 uptime_seconds=$((total_uptime_seconds % 60))
 
 # Print the result and perfdata