diff --git a/src/AbstractCsv.php b/src/AbstractCsv.php
index a63b3e5d..70600551 100644
--- a/src/AbstractCsv.php
+++ b/src/AbstractCsv.php
@@ -231,7 +231,7 @@ public function detectDelimiter($nbRows = 1, array $delimiters = [])
         $delimiters = array_filter($delimiters, function ($str) {
             return 1 == mb_strlen($str);
         });
-        $delimiters = array_merge([',', ';', "\t"], $delimiters);
+        $delimiters = array_merge([$this->delimiter, ',', ';', "\t"], $delimiters);
         $delimiters = array_unique($delimiters);
         $iterator = new CallbackFilterIterator(
             new LimitIterator($this->getIterator(), 0, $nbRows),