diff --git a/docs/.htmltest.yml b/docs/.htmltest.yml
index 9f9ba77c85..20ba2d0712 100644
--- a/docs/.htmltest.yml
+++ b/docs/.htmltest.yml
@@ -1,5 +1,6 @@
 ---
 CheckDoctype: false
+IgnoreDirectoryMissingTrailingSlash: true
 IgnoreDirs:
   - favicons
   - docs/crd-ref/lifecycle/