diff --git a/Formatter/OutputFormatter.php b/Formatter/OutputFormatter.php
index 5d52896ac..26288ce62 100644
--- a/Formatter/OutputFormatter.php
+++ b/Formatter/OutputFormatter.php
@@ -25,6 +25,14 @@ class OutputFormatter implements WrappableOutputFormatterInterface
     private $styles = [];
     private $styleStack;
 
+    public function __clone()
+    {
+        $this->styleStack = clone $this->styleStack;
+        foreach ($this->styles as $key => $value) {
+            $this->styles[$key] = clone $value;
+        }
+    }
+
     /**
      * Escapes "<" special char in given text.
      *
diff --git a/Tests/Fixtures/Style/SymfonyStyle/command/command_20.php b/Tests/Fixtures/Style/SymfonyStyle/command/command_20.php
new file mode 100644
index 000000000..6b47969ee
--- /dev/null
+++ b/Tests/Fixtures/Style/SymfonyStyle/command/command_20.php
@@ -0,0 +1,13 @@
+<?php
+
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+
+// Ensure that closing tag is applied once
+return function (InputInterface $input, OutputInterface $output) {
+    $output->setDecorated(true);
+    $output = new SymfonyStyle($input, $output);
+    $output->write('<question>do you want <comment>something</>');
+    $output->writeln('?</>');
+};
diff --git a/Tests/Fixtures/Style/SymfonyStyle/output/output_20.txt b/Tests/Fixtures/Style/SymfonyStyle/output/output_20.txt
new file mode 100644
index 000000000..c08298530
--- /dev/null
+++ b/Tests/Fixtures/Style/SymfonyStyle/output/output_20.txt
@@ -0,0 +1 @@
+do you want something?