diff --git a/src/Symfony/Component/Translation/MessageSelector.php b/src/Symfony/Component/Translation/MessageSelector.php
index 9f5430cfe29ae..f7fde31ad9090 100644
--- a/src/Symfony/Component/Translation/MessageSelector.php
+++ b/src/Symfony/Component/Translation/MessageSelector.php
@@ -57,7 +57,7 @@ public function choose($message, $number, $locale)
         foreach ($parts as $part) {
             $part = trim($part);
 
-            if (preg_match('/^(?P<interval>'.Interval::getIntervalRegexp().')\s*(?P<message>.*?)$/x', $part, $matches)) {
+            if (preg_match('/^(?P<interval>'.Interval::getIntervalRegexp().')\s*(?P<message>.*?)$/xs', $part, $matches)) {
                 $explicitRules[$matches['interval']] = $matches['message'];
             } elseif (preg_match('/^\w+\:\s*(.*?)$/', $part, $matches)) {
                 $standardRules[] = $matches[1];