diff --git a/Request.php b/Request.php
index 6690b9b22..bff1c0cbf 100644
--- a/Request.php
+++ b/Request.php
@@ -725,7 +725,7 @@ public function getSession()
 
         if (null === $session) {
             @trigger_error(sprintf('Calling "%s()" when no session has been set is deprecated since Symfony 4.1 and will throw an exception in 5.0. Use "hasSession()" instead.', __METHOD__), E_USER_DEPRECATED);
-            // throw new \BadMethodCallException('Session has not been set');
+            // throw new \BadMethodCallException('Session has not been set.');
         }
 
         return $session;
diff --git a/Session/Storage/Handler/RedisSessionHandler.php b/Session/Storage/Handler/RedisSessionHandler.php
index e5be90d5f..1b83de09b 100644
--- a/Session/Storage/Handler/RedisSessionHandler.php
+++ b/Session/Storage/Handler/RedisSessionHandler.php
@@ -54,11 +54,11 @@ public function __construct($redis, array $options = [])
             !$redis instanceof RedisProxy &&
             !$redis instanceof RedisClusterProxy
         ) {
-            throw new \InvalidArgumentException(sprintf('%s() expects parameter 1 to be Redis, RedisArray, RedisCluster or Predis\ClientInterface, %s given', __METHOD__, \is_object($redis) ? \get_class($redis) : \gettype($redis)));
+            throw new \InvalidArgumentException(sprintf('%s() expects parameter 1 to be Redis, RedisArray, RedisCluster or Predis\ClientInterface, %s given.', __METHOD__, \is_object($redis) ? \get_class($redis) : \gettype($redis)));
         }
 
         if ($diff = array_diff(array_keys($options), ['prefix', 'ttl'])) {
-            throw new \InvalidArgumentException(sprintf('The following options are not supported "%s"', implode(', ', $diff)));
+            throw new \InvalidArgumentException(sprintf('The following options are not supported "%s".', implode(', ', $diff)));
         }
 
         $this->redis = $redis;