diff --git a/.htmltest.yml b/.htmltest.yml
index c5dbe60186..c6f52ef394 100644
--- a/.htmltest.yml
+++ b/.htmltest.yml
@@ -1,5 +1,6 @@
 DirectoryPath: "public"
 IgnoreDirectoryMissingTrailingSlash: True
+IgnoreAltMissing: True
 IgnoreURLs:
   - "fonts.gstatic.com"
   - "github.com"