diff --git a/DependencyInjection/Configuration.php b/DependencyInjection/Configuration.php
index 54fd5e6e..44a12188 100644
--- a/DependencyInjection/Configuration.php
+++ b/DependencyInjection/Configuration.php
@@ -140,7 +140,7 @@ private function addSerializersSection(NodeBuilder $builder)
                         ->validate()
                             ->always(function($v) {
                                 if (!empty($v) && !interface_exists('Symfony\Component\ExpressionLanguage\ExpressionFunctionProviderInterface')) {
-                                    throw new InvalidArgumentException('You need at least symfony/expression language v2.6 or v3.0 to use the expression evaluator features');
+                                    throw new InvalidArgumentException('You need at least symfony/expression-language v2.6 or v3.0 to use the expression evaluator features');
                                 }
                                 return $v;
                             })
diff --git a/Tests/DependencyInjection/JMSSerializerExtensionTest.php b/Tests/DependencyInjection/JMSSerializerExtensionTest.php
index 6130022a..3cab76a6 100644
--- a/Tests/DependencyInjection/JMSSerializerExtensionTest.php
+++ b/Tests/DependencyInjection/JMSSerializerExtensionTest.php
@@ -439,7 +439,7 @@ public function testExpressionLanguageNotLoaded()
 
     /**
      * @expectedException \Symfony\Component\Config\Definition\Exception\InvalidConfigurationException
-     * @expectedExceptionMessage Invalid configuration for path "jms_serializer.expression_evaluator.id": You need at least symfony/expression language v2.6 or v3.0 to use the expression evaluator features
+     * @expectedExceptionMessage Invalid configuration for path "jms_serializer.expression_evaluator.id": You need at least symfony/expression-language v2.6 or v3.0 to use the expression evaluator features
      */
     public function testExpressionInvalidEvaluator()
     {