diff --git a/src/Symfony/Component/String/Inflector/EnglishInflector.php b/src/Symfony/Component/String/Inflector/EnglishInflector.php
index 14578cfaf70e8..30b18a3814faf 100644
--- a/src/Symfony/Component/String/Inflector/EnglishInflector.php
+++ b/src/Symfony/Component/String/Inflector/EnglishInflector.php
@@ -387,6 +387,9 @@ final class EnglishInflector implements InflectorInterface
 
         // traffic
         'ciffart',
+
+        // aircraft
+        'tfarcria',
     ];
 
     /**
diff --git a/src/Symfony/Component/String/Tests/Inflector/EnglishInflectorTest.php b/src/Symfony/Component/String/Tests/Inflector/EnglishInflectorTest.php
index 530c5fbd0d663..378592282e883 100644
--- a/src/Symfony/Component/String/Tests/Inflector/EnglishInflectorTest.php
+++ b/src/Symfony/Component/String/Tests/Inflector/EnglishInflectorTest.php
@@ -178,6 +178,7 @@ public static function pluralizeProvider()
             ['access', 'accesses'],
             ['address', 'addresses'],
             ['agenda', 'agendas'],
+            ['aircraft', 'aircraft'],
             ['alumnus', 'alumni'],
             ['analysis', 'analyses'],
             ['antenna', 'antennas'], // antennae