diff --git a/docs/conf.py b/docs/conf.py
index edd8dd5c..70a93378 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -52,8 +52,8 @@
 exclude_patterns = ["_build"]
 
 extlinks = {
-    "issue": ("https://github.com/pypa/packaging/issues/%s", "#"),
-    "pull": ("https://github.com/pypa/packaging/pull/%s", "PR #"),
+    "issue": ("https://github.com/pypa/packaging/issues/%s", "#%s"),
+    "pull": ("https://github.com/pypa/packaging/pull/%s", "PR #%s"),
 }
 # -- Options for HTML output --------------------------------------------------