diff --git a/utils/load_warranty_serial/load_serials.php b/utils/load_warranty_serial/load_serials.php
index 9df178bc..323f3156 100644
--- a/utils/load_warranty_serial/load_serials.php
+++ b/utils/load_warranty_serial/load_serials.php
@@ -9,7 +9,7 @@ $output_file = $argv[5];
 
 $output_fh = fopen($output_file, "w");
 
-if (!file_exists($csv))
+if (!file_exists($argv[1]))
 {
     $err_message =  "No csv input file found." .  "\n";
     fwrite($output_fh, $err_message);
@@ -34,6 +34,7 @@ while (($row = fgetcsv($csv)) !== false)
     // (2) No available data
     // (3) CH2000012071,WCHD23BL-CPN00-LX,0,2020-08-11 04:05:27.090,0,4,CHAMPION MF
     // (4) Empty line
+    // (5) empty sku
 
     // check if No available data
     if ($row[0] == 'No available data')
@@ -43,25 +44,22 @@ while (($row = fgetcsv($csv)) !== false)
         continue;
     }
 
-    // check if new line
-    if (empty($row[0]))
+    // check if empty line
+    if ($row == array(null))
     {
         // skip
         error_log('Skipping empty line...');
         continue;
     }
 
-    // check if csv file has a header by checking contents of line
-    if (($row[0] == 'SerialNumber') || ($row[1] == 'Sku') ||
-        ($row[2] == 'DispatchStatus') || ($row[3] == 'CreatedDate') ||
-        ($row[4] == 'InventoryStatus') || ($row[5] == 'CategoryID') ||
-        ($row[6] == 'CategoryName'))
+    // check if empty serial
+    if (empty($row[0]))
     {
-        // skip the header
-        error_log('Skipping the headers... ');
+        $err_message = "Empty serial. " . "\n";
+        fwrite($output_fh, $err_message);
         continue;
     }
- 
+
     // sample of line in output file:
     // serial number, sku, dispatch status, created date, inventory status, category id, category name
     // CH2000012071,WCHD23BL-CPN00-LX,0,2020-08-11 04:05:27.090,0,4,CHAMPION MF