diff --git a/userguide/.htmltest.yml b/userguide/.htmltest.yml
index 9ef7c974a..ce22f0af4 100644
--- a/userguide/.htmltest.yml
+++ b/userguide/.htmltest.yml
@@ -4,7 +4,6 @@ IgnoreAltMissing: true # FIXME
 IgnoreDirectoryMissingTrailingSlash: true # FIXME
 TestFilesConcurrently: true
 IgnoreDirs:
-  - _include
   - _print
   - ^blog/(\d+/)?page/\d+
   - ^docs/[a-z] # temporary; we'll incrementally add docs sections
diff --git a/userguide/hugo.yaml b/userguide/hugo.yaml
index 8f8d6016b..d23b3b9c7 100644
--- a/userguide/hugo.yaml
+++ b/userguide/hugo.yaml
@@ -14,8 +14,6 @@ outputs:
   page: [HTML]
   section: [HTML, RSS, print]
 
-ignoreFiles: [_include]
-
 imaging:
   resampleFilter: CatmullRom
   quality: 75