diff --git a/src/Fixer/PhpTag/LinebreakAfterOpeningTagFixer.php b/src/Fixer/PhpTag/LinebreakAfterOpeningTagFixer.php
index 5d59e52f392..5eef330eaba 100644
--- a/src/Fixer/PhpTag/LinebreakAfterOpeningTagFixer.php
+++ b/src/Fixer/PhpTag/LinebreakAfterOpeningTagFixer.php
@@ -53,6 +53,11 @@ protected function applyFix(\SplFileInfo $file, Tokens $tokens)
             return;
         }
 
+        // ignore if linebreak already present
+        if (false !== strpos($tokens[0]->getContent(), "\n")) {
+            return;
+        }
+
         $newlineFound = false;
         foreach ($tokens as $token) {
             if ($token->isWhitespace() && false !== strpos($token->getContent(), "\n")) {
@@ -67,7 +72,6 @@ protected function applyFix(\SplFileInfo $file, Tokens $tokens)
             return;
         }
 
-        $token = $tokens[0];
-        $tokens[0] = new Token([$token->getId(), rtrim($token->getContent()).$this->whitespacesConfig->getLineEnding()]);
+        $tokens[0] = new Token([T_OPEN_TAG, rtrim($tokens[0]->getContent()).$this->whitespacesConfig->getLineEnding()]);
     }
 }
diff --git a/tests/Fixer/PhpTag/LinebreakAfterOpeningTagFixerTest.php b/tests/Fixer/PhpTag/LinebreakAfterOpeningTagFixerTest.php
index c02ac888c2d..a11e627c96d 100644
--- a/tests/Fixer/PhpTag/LinebreakAfterOpeningTagFixerTest.php
+++ b/tests/Fixer/PhpTag/LinebreakAfterOpeningTagFixerTest.php
@@ -81,6 +81,11 @@ public function provideFixCases()
 $foo = $bar;
 ?>',
             ],
+            [
+                str_replace("\n", "\r\n", '<?php
+// linebreak already present in file with Windows line endings
+'),
+            ],
         ];
     }