diff --git a/src/Spout/Writer/XLSX/Writer.php b/src/Spout/Writer/XLSX/Writer.php
index 965955a..1a6ad3f 100644
--- a/src/Spout/Writer/XLSX/Writer.php
+++ b/src/Spout/Writer/XLSX/Writer.php
@@ -125,7 +125,7 @@ class Writer extends AbstractMultiSheetsWriter
      */
     protected function closeWriter()
     {
-        if ($this->book) {
+        if ($this->book && $this->isWriterOpened) {
             $this->book->close($this->filePointer);
         }
     }
diff --git a/tests/Spout/Writer/XLSX/WriterTest.php b/tests/Spout/Writer/XLSX/WriterTest.php
index c7f4f96..71aba50 100644
--- a/tests/Spout/Writer/XLSX/WriterTest.php
+++ b/tests/Spout/Writer/XLSX/WriterTest.php
@@ -507,6 +507,19 @@ class WriterTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals('application/vnd.openxmlformats-officedocument.spreadsheetml.sheet', $finfo->file($resourcePath));
     }
 
+    /**
+     * @return void
+     */
+    public function testCloseIsNotAppliedWhenWriterIsNotOpened()
+    {
+        /** @var \Box\Spout\Writer\XLSX\Writer $writer */
+        $writer = WriterFactory::create(Type::XLSX);
+        $writer->openToFile('test_close.xlsx');
+        $writer->addRow(['foo']);
+        $writer->close();
+        $writer->close();
+    }
+
     /**
      * @param array $allRows
      * @param string $fileName