diff --git a/roles/fetch-sphinx-tarball/README.rst b/roles/fetch-sphinx-tarball/README.rst
index ba807f0b3..d78cf9fa9 100644
--- a/roles/fetch-sphinx-tarball/README.rst
+++ b/roles/fetch-sphinx-tarball/README.rst
@@ -22,4 +22,4 @@ archive into the log root for viewing.
 
    A list of file names of PDF files to collect.
    By default, the list contains as entry only
-   ``{{ zuul.project.short_name }}.pdf``.
+   ``doc-{{ zuul.project.short_name }}.pdf``.
diff --git a/roles/fetch-sphinx-tarball/defaults/main.yaml b/roles/fetch-sphinx-tarball/defaults/main.yaml
index 6c7b084ec..a49d3c3cd 100644
--- a/roles/fetch-sphinx-tarball/defaults/main.yaml
+++ b/roles/fetch-sphinx-tarball/defaults/main.yaml
@@ -2,4 +2,4 @@
 zuul_work_dir: "{{ zuul.project.src_dir }}"
 sphinx_build_dir: doc/build
 sphinx_pdf_files:
-  - "{{ zuul.project.short_name }}.pdf"
+  - "doc-{{ zuul.project.short_name }}.pdf"