diff --git a/parsecsv.lib.php b/parsecsv.lib.php
index 568ae82..a2c7def 100644
--- a/parsecsv.lib.php
+++ b/parsecsv.lib.php
@@ -495,6 +495,8 @@ class parseCSV {
 
         if (is_null($enclosure)) {
             $enclosure = $this->enclosure;
+        } else {
+            $this->enclosure = $enclosure;
         }
 
         if (is_null($preferred)) {
diff --git a/tests/methods/auto_test.php b/tests/methods/auto_test.php
new file mode 100644
index 0000000..124a9ef
--- /dev/null
+++ b/tests/methods/auto_test.php
@@ -0,0 +1,26 @@
+<?php
+
+class auto_Test extends PHPUnit_Framework_TestCase
+{
+    public function autoQuotesDataProvider()
+    {
+        return array(
+            array('tests/methods/fixtures/auto-double-enclosure.csv', '"'),
+            array('tests/methods/fixtures/auto-single-enclosure.csv', "'"),
+        );
+    }
+
+    /**
+     * @dataProvider autoQuotesDataProvider
+     * 
+     * @param string $file
+     * @param string $enclosure
+     */
+    public function testAutoQuotes($file, $enclosure)
+    {
+        $csv = new parseCSV();
+        $csv->auto($file, true, null, null, $enclosure);
+        $this->assertArrayHasKey('column1', $csv->data[0], 'Data parsed incorrectly with enclosure ' . $enclosure);
+        $this->assertEquals('value1', $csv->data[0]['column1'], 'Data parsed incorrectly with enclosure ' . $enclosure);
+    }
+}
diff --git a/tests/methods/fixtures/auto-double-enclosure.csv b/tests/methods/fixtures/auto-double-enclosure.csv
new file mode 100644
index 0000000..47f7bec
--- /dev/null
+++ b/tests/methods/fixtures/auto-double-enclosure.csv
@@ -0,0 +1,3 @@
+"column1","column2"
+"value1","value2"
+"value3","value4"
\ No newline at end of file
diff --git a/tests/methods/fixtures/auto-single-enclosure.csv b/tests/methods/fixtures/auto-single-enclosure.csv
new file mode 100644
index 0000000..716beb2
--- /dev/null
+++ b/tests/methods/fixtures/auto-single-enclosure.csv
@@ -0,0 +1,3 @@
+'column1','column2'
+'value1','value2'
+'value3','value4'
\ No newline at end of file