diff --git a/api-ref/source/conf.py b/api-ref/source/conf.py
index a618be7..dcbeb8a 100755
--- a/api-ref/source/conf.py
+++ b/api-ref/source/conf.py
@@ -115,7 +115,7 @@ html_copy_source = False
 latex_documents = [
     ('index',
      'rfs-api-ref.tex',
-     u'Resource Formation Service - API Reference',
+    u'Resource Formation Service - API Reference',
      u'OpenTelekomCloud', 'manual'),
 ]
 
diff --git a/tox.ini b/tox.ini
index 032f4de..cfbc3a4 100644
--- a/tox.ini
+++ b/tox.ini
@@ -44,7 +44,7 @@ commands =
   {[testenv:umn]commands}
   {[testenv:json-umn]commands}
 
-[testenv:docs-pdf]
+[testenv:pdf-docs]
 deps =
   {[testenv:docs]deps}
   {[testenv:bindeps]deps}
diff --git a/umn/source/conf.py b/umn/source/conf.py
index 5227d13..768dab8 100755
--- a/umn/source/conf.py
+++ b/umn/source/conf.py
@@ -115,7 +115,7 @@ html_copy_source = False
 latex_documents = [
     ('index',
      'rfs-umn.tex',
-     u'Resource Formation Service - User Guide',
+    u'Resource Formation Service - User Guide',
      u'OpenTelekomCloud', 'manual'),
 ]
 
diff --git a/zuul.yaml b/zuul.yaml
index 107ef29..06e4121 100644
--- a/zuul.yaml
+++ b/zuul.yaml
@@ -4,6 +4,10 @@
     default-branch: main
     templates:
       - helpcenter-base-jobs
+    vars:
+      sphinx_pdf_files:
+        - rfs-api-ref.pdf
+        - rfs-umn.pdf
     check:
       jobs:
         - noop