diff --git a/src/DSNConfigurator.php b/src/DSNConfigurator.php
index 4858a81a..8706f088 100644
--- a/src/DSNConfigurator.php
+++ b/src/DSNConfigurator.php
@@ -81,7 +81,7 @@ class DSNConfigurator
 
         if (false === $config || !isset($config['scheme']) || !isset($config['host'])) {
             throw new Exception(
-                sprintf('Mailformed DSN: "%s".', $dsn)
+                sprintf('Malformed DSN: "%s".', $dsn)
             );
         }
 
diff --git a/test/PHPMailer/DSNConfiguratorTest.php b/test/PHPMailer/DSNConfiguratorTest.php
index fdde6a1e..dcb1e72c 100644
--- a/test/PHPMailer/DSNConfiguratorTest.php
+++ b/test/PHPMailer/DSNConfiguratorTest.php
@@ -34,7 +34,7 @@ final class DSNConfiguratorTest extends TestCase
         $configurator = new DSNConfigurator();
 
         $this->expectException(Exception::class);
-        $this->expectExceptionMessage('Mailformed DSN: "localhost".');
+        $this->expectExceptionMessage('Malformed DSN: "localhost".');
 
         $configurator->configure($this->Mail, 'localhost');
     }