diff --git a/check_uptime.sh b/check_uptime.sh
index 8464c2c..dfbe45b 100755
--- a/check_uptime.sh
+++ b/check_uptime.sh
@@ -7,7 +7,7 @@ UPTIME_EXIT_CODE=$?
 # Check if the uptime command was successful
 if [ $UPTIME_EXIT_CODE -ne 0 ]; then
   echo "UNKNOWN - Unable to get uptime"
-  exit 3
+  exit -1
 fi
 
 # Calculate the uptime in seconds
@@ -18,9 +18,9 @@ UPTIME_SECONDS=$((CURRENT_TIME - UPTIME_START))
 # Convert the uptime seconds to hours
 UPTIME_HOURS=$(echo "scale=2; $UPTIME_SECONDS / 3600" | bc)
 
-# Get the human-readable uptime
-UPTIME_HUMAN=$(uptime -p)
+# Convert the uptime seconds to days
+UPTIME_DAYS=$(echo "scale=2; $UPTIME_SECONDS / 86400" | bc)
 
 # Print the result and performance data
-echo "OK - Uptime: $UPTIME_HUMAN | uptime_hours=$UPTIME_HOURS"
+echo "OK - Uptime: $UPTIME_DAYS days | uptime_hours=$UPTIME_HOURS"
 exit 0