diff --git a/src/Fixer/Basic/NonPrintableCharacterFixer.php b/src/Fixer/Basic/NonPrintableCharacterFixer.php
index 428cdab9792..c7cbb18495f 100644
--- a/src/Fixer/Basic/NonPrintableCharacterFixer.php
+++ b/src/Fixer/Basic/NonPrintableCharacterFixer.php
@@ -165,7 +165,7 @@ protected function applyFix(\SplFileInfo $file, Tokens $tokens): void
 
                 if ($swapQuotes) {
                     $content = str_replace('"', '\"', $content);
-                    $content = Preg::replace('/^\'(.*)\'$/', '"$1"', $content);
+                    $content = Preg::replace('/^\'(.*)\'$/s', '"$1"', $content);
                 }
 
                 $tokens[$index] = new Token([$token->getId(), strtr($content, $escapeSequences)]);
diff --git a/tests/Fixer/Basic/NonPrintableCharacterFixerTest.php b/tests/Fixer/Basic/NonPrintableCharacterFixerTest.php
index b4080f9440d..45d5c0f8722 100644
--- a/tests/Fixer/Basic/NonPrintableCharacterFixerTest.php
+++ b/tests/Fixer/Basic/NonPrintableCharacterFixerTest.php
@@ -303,6 +303,10 @@ function f(string $p)
 INPUT
                  , pack('H*', 'e2808b')),
             ],
+            [
+                "<?php \"String in single quotes, having non-breaking space: \\u{a0}, linebreak: \n, and single quote inside: ' is a dangerous mix.\";",
+                "<?php 'String in single quotes, having non-breaking space: ".pack('H*', 'c2a0').", linebreak: \n, and single quote inside: \\' is a dangerous mix.';",
+            ],
         ];
     }
 }