diff --git a/WordPress-Extra/ruleset.xml b/WordPress-Extra/ruleset.xml
index 202e37ce..ec60af9c 100644
--- a/WordPress-Extra/ruleset.xml
+++ b/WordPress-Extra/ruleset.xml
@@ -34,4 +34,6 @@
 	<rule ref="WordPress.Variables.GlobalVariables"/>
 	<rule ref="WordPress.PHP.StrictComparisons" />
 
+	<!-- https://vip.wordpress.com/documentation/code-review-what-we-look-for/#using-in_array-without-strict-parameter -->
+	<rule ref="WordPress.PHP.StrictInArray" />
 </ruleset>