diff --git a/Classes/PHPExcel/Reader/CSV.php b/Classes/PHPExcel/Reader/CSV.php
index 194240f..21329da 100644
--- a/Classes/PHPExcel/Reader/CSV.php
+++ b/Classes/PHPExcel/Reader/CSV.php
@@ -168,10 +168,11 @@ class PHPExcel_Reader_CSV extends PHPExcel_Reader_Abstract implements PHPExcel_R
             return;
         }
 
-        if ((strlen(trim($line)) == 5) && (strpos($line, 'sep=') !== 0)) {
-            return $this->skipBOM();
+        if ((strlen(trim($line, "\r\n")) == 5) && (stripos($line, 'sep=') === 0)) {
+            $this->delimiter = substr($line, 4, 1);
+            return;
         }
-        $this->delimiter = substr($line, 4, 1);
+        return $this->skipBOM();
     }
 
     /**