diff --git a/.phpcs.xml b/.phpcs.xml
index fa5065ef9559c84ed50cbaf5fc118847cae86207..db8e46a13d240367c0602f931ec0d6129880e56e 100644
--- a/.phpcs.xml
+++ b/.phpcs.xml
@@ -4,9 +4,9 @@
   <description>Default PHP CodeSniffer configuration for Drupal core.</description>
 
   <!--Exclude folders used by common frontend tools. These folders match the file_scan_ignore_directories setting in default.settings.php-->
-  <exclude-pattern>node_modules/*</exclude-pattern>
-  <exclude-pattern>web/*</exclude-pattern>
-  <exclude-pattern>vender/*</exclude-pattern>
+  <exclude-pattern>/node_modules/*</exclude-pattern>
+  <exclude-pattern>/web/*</exclude-pattern>
+  <exclude-pattern>/vender/*</exclude-pattern>
   <file>.</file>
 
   <!-- Only include specific sniffs that pass. This ensures that, if new sniffs are added, HEAD does not fail.-->