diff --git a/tests/Core/AbstractMethodUnitTest.php b/tests/Core/AbstractMethodUnitTest.php
index 258f0b35fb..b933be17b4 100644
--- a/tests/Core/AbstractMethodUnitTest.php
+++ b/tests/Core/AbstractMethodUnitTest.php
@@ -57,7 +57,8 @@ abstract class AbstractMethodUnitTest extends TestCase
      */
     public static function initializeFile()
     {
-        $config = new ConfigDouble();
+        $_SERVER['argv'] = [];
+        $config          = new ConfigDouble();
         // Also set a tab-width to enable testing tab-replaced vs `orig_content`.
         $config->tabWidth = static::$tabWidth;
 
diff --git a/tests/Core/Tokenizer/AbstractTokenizerTestCase.php b/tests/Core/Tokenizer/AbstractTokenizerTestCase.php
index c9e09c07d4..0f829182ba 100644
--- a/tests/Core/Tokenizer/AbstractTokenizerTestCase.php
+++ b/tests/Core/Tokenizer/AbstractTokenizerTestCase.php
@@ -62,7 +62,9 @@ abstract class AbstractTokenizerTestCase extends TestCase
     protected function initializeFile()
     {
         if (isset($this->phpcsFile) === false) {
-            $config = new ConfigDouble();
+            $_SERVER['argv'] = [];
+            $config          = new ConfigDouble();
+
             // Also set a tab-width to enable testing tab-replaced vs `orig_content`.
             $config->tabWidth = $this->tabWidth;
 
@@ -79,7 +81,7 @@ protected function initializeFile()
 
             $this->phpcsFile = new DummyFile($contents, $ruleset, $config);
             $this->phpcsFile->parse();
-        }
+        }//end if
 
     }//end initializeFile()