diff --git a/src/Fixer/Whitespace/ArrayIndentationFixer.php b/src/Fixer/Whitespace/ArrayIndentationFixer.php
index 39087263ceb..a6ef96e8e4b 100644
--- a/src/Fixer/Whitespace/ArrayIndentationFixer.php
+++ b/src/Fixer/Whitespace/ArrayIndentationFixer.php
@@ -80,7 +80,7 @@ protected function applyFix(\SplFileInfo $file, Tokens $tokens)
                 $token = $tokens[$index];
                 if ($this->newlineIsInArrayScope($tokens, $index, $array)) {
                     $content = Preg::replace(
-                        '/(\R)[\t ]*$/',
+                        '/(\R+)[\t ]*$/',
                         '$1'.$arrayIndent.str_repeat($this->whitespacesConfig->getIndent(), $currentIndentLevel),
                         $token->getContent()
                     );
diff --git a/tests/Fixer/Whitespace/ArrayIndentationFixerTest.php b/tests/Fixer/Whitespace/ArrayIndentationFixerTest.php
index 806eb62c7a2..050e1e457a1 100644
--- a/tests/Fixer/Whitespace/ArrayIndentationFixerTest.php
+++ b/tests/Fixer/Whitespace/ArrayIndentationFixerTest.php
@@ -701,6 +701,26 @@ class="link"
         Link text
     </a>
 </div>
+INPUT
+                ,
+            ],
+            [
+                <<<'EXPECTED'
+<?php
+$arr = [
+    'a' => 'b',
+
+    //  'c' => 'd',
+];
+EXPECTED
+                ,
+                <<<'INPUT'
+<?php
+$arr = [
+    'a' => 'b',
+
+//  'c' => 'd',
+];
 INPUT
                 ,
             ],