diff --git a/src/sage_docbuild/conf.py b/src/sage_docbuild/conf.py
index 567140880a5..0273876b734 100644
--- a/src/sage_docbuild/conf.py
+++ b/src/sage_docbuild/conf.py
@@ -461,7 +461,7 @@ def linkcode_resolve(domain, info):
ver += f' built with GitHub PR #{pr_number}' \
f' on {pr_sha[:7]}' \
f' [changes]'
- banner = f'This is documentation of Sage version {ver} for development purpose.'
+ banner = f'This is documentation for Sage version {ver} for development purpose.'
html_theme_options.update({ "announcement": banner })
# The name of the Pygments (syntax highlighting) style to use. This