diff --git a/.phpcs.xml b/.phpcs.xml
index 72dd231..77a35e5 100644
--- a/.phpcs.xml
+++ b/.phpcs.xml
@@ -5,6 +5,11 @@
         but without the MissingNamespace sniff.
     </description>
 
+    <!--
+        Run on current working directory by default
+    -->
+    <file>.</file>
+
     <!--
         Exclude _build/ and vendor/ dirs as well as minified JavaScript files
     -->