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-rw-r--r--sphinx/directives.py2
1 files changed, 1 insertions, 1 deletions
diff --git a/sphinx/directives.py b/sphinx/directives.py
index 419e359a2..8195cc988 100644
--- a/sphinx/directives.py
+++ b/sphinx/directives.py
@@ -426,7 +426,7 @@ for _name in desctypes:
# the directives are either desc_directive or target_directive
additional_xref_types = {
# directive name: (role name, index text, function to parse the desc node)
- 'envvar': ('envvar', 'environment variable', None),
+ 'envvar': ('envvar', 'environment variable; %s', None),
}