diff --git a/CODING_STANDARDS.md b/CODING_STANDARDS.md
index 0d495d2..95ee73e 100644
--- a/CODING_STANDARDS.md
+++ b/CODING_STANDARDS.md
@@ -100,3 +100,5 @@
     ```
 
     Rule inherited from [PHP](https://github.com/php/php-src/edit/master/CODING_STANDARDS.md).
+
+5. All code must adhere to automated coding style checks.
\ No newline at end of file
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index fef23ca..ff3e1a8 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -23,7 +23,7 @@ docker run -it --mount type=bind,source="$(pwd)"/,target=/application/ phpmarkup
 *  Update or add tests to avoid the change breaking in future releases.
 
 ```
-docker run -it --mount type=bind,source="$(pwd)"/,target=/application/ phpmarkup:latest composer qa
+docker run -it --mount type=bind,source="$(pwd)"/,target=/application/ phpmarkup:latest composer qc
 ```
 
 ### Step 4
diff --git a/tests/src/Unit/Element/AbstractElementTest.php b/tests/src/Unit/Element/AbstractElementTest.php
index 8db9454..dffb621 100644
--- a/tests/src/Unit/Element/AbstractElementTest.php
+++ b/tests/src/Unit/Element/AbstractElementTest.php
@@ -46,6 +46,8 @@ public function testGetArgByName()
     {
         $this->element->args['test'] = 'pass';
         $this->assertEquals('pass', $this->element->getArgByName('test'));
+
+        $this->assertEquals(null, $this->element->getArgByName('doesntexist'));
     }
 
     /**