diff --git a/src/Symfony/Component/Inflector/Inflector.php b/src/Symfony/Component/Inflector/Inflector.php
index 3e305f0a3dd24..70ac51fc0dfa2 100644
--- a/src/Symfony/Component/Inflector/Inflector.php
+++ b/src/Symfony/Component/Inflector/Inflector.php
@@ -318,6 +318,7 @@ final class Inflector
         'esoom',
         'seires',
         'peehs',
+        'seiceps',
     ];
 
     /**
diff --git a/src/Symfony/Component/Inflector/Tests/InflectorTest.php b/src/Symfony/Component/Inflector/Tests/InflectorTest.php
index d0bf01ea9095a..1d80d1d636da7 100644
--- a/src/Symfony/Component/Inflector/Tests/InflectorTest.php
+++ b/src/Symfony/Component/Inflector/Tests/InflectorTest.php
@@ -134,6 +134,7 @@ public function singularizeProvider()
             ['services', 'service'],
             ['sheriffs', 'sheriff'],
             ['shoes', ['sho', 'shoe']],
+            ['species', 'species'],
             ['spies', 'spy'],
             ['staves', ['staf', 'stave', 'staff']],
             ['stories', 'story'],
@@ -268,6 +269,7 @@ public function pluralizeProvider()
             ['service', 'services'],
             ['sheriff', 'sheriffs'],
             ['shoe', 'shoes'],
+            ['species', 'species'],
             ['spy', 'spies'],
             ['staff', 'staves'],
             ['story', 'stories'],