diff --git a/dev/tests/static/phpunit-all.xml.dist b/dev/tests/static/phpunit-all.xml.dist
index 626e753c3c242..a0d1f2fe75dc9 100644
--- a/dev/tests/static/phpunit-all.xml.dist
+++ b/dev/tests/static/phpunit-all.xml.dist
@@ -20,5 +20,7 @@
     </testsuites>
     <php>
         <ini name="date.timezone" value="America/Los_Angeles"/>
+        <!-- TESTCODESTYLE_IS_FULL_SCAN - specify if full scan should be performed for test code style test -->
+        <const name="TESTCODESTYLE_IS_FULL_SCAN" value="1"/>
     </php>
 </phpunit>
diff --git a/dev/tests/static/phpunit.xml.dist b/dev/tests/static/phpunit.xml.dist
index 0afaddb34caef..d9f9dbdfe54cd 100644
--- a/dev/tests/static/phpunit.xml.dist
+++ b/dev/tests/static/phpunit.xml.dist
@@ -30,6 +30,7 @@
     </testsuites>
     <php>
         <ini name="date.timezone" value="America/Los_Angeles"/>
+        <!-- TESTCODESTYLE_IS_FULL_SCAN - specify if full scan should be performed for test code style test -->
         <const name="TESTCODESTYLE_IS_FULL_SCAN" value="1"/>
         <!-- TESTS_COMPOSER_PATH - specify the path to composer binary, if a relative reference cannot be resolved -->
         <!--<const name="TESTS_COMPOSER_PATH" value="/usr/local/bin/composer"/>-->