diff --git a/aurweb/models/package_comment.py b/aurweb/models/package_comment.py
index 2a529c9c..7ab1f218 100644
--- a/aurweb/models/package_comment.py
+++ b/aurweb/models/package_comment.py
@@ -52,3 +52,11 @@ class PackageComment(Base):
 
         if self.RenderedComment is None:
             self.RenderedComment = str()
+
+    def maintainers(self):
+        return list(filter(
+            lambda e: e is not None,
+            [self.PackageBase.Maintainer] + [
+                c.User for c in self.PackageBase.comaintainers
+            ]
+        ))
diff --git a/aurweb/pkgbase/util.py b/aurweb/pkgbase/util.py
index fbfcd869..18af3df0 100644
--- a/aurweb/pkgbase/util.py
+++ b/aurweb/pkgbase/util.py
@@ -25,9 +25,11 @@ def make_context(request: Request, pkgbase: PackageBase) -> Dict[str, Any]:
     context["git_clone_uri_anon"] = config.get("options", "git_clone_uri_anon")
     context["git_clone_uri_priv"] = config.get("options", "git_clone_uri_priv")
     context["pkgbase"] = pkgbase
-    context["comaintainers"] = pkgbase.comaintainers.order_by(
-        PackageComaintainer.Priority.asc()
-    ).all()
+    context["comaintainers"] = [
+        c.User for c in pkgbase.comaintainers.order_by(
+            PackageComaintainer.Priority.asc()
+        ).all()
+    ]
     context["packages_count"] = pkgbase.packages.count()
     context["keywords"] = pkgbase.keywords
     context["comments"] = pkgbase.comments.order_by(
diff --git a/aurweb/routers/pkgbase.py b/aurweb/routers/pkgbase.py
index cd35a7f8..7825ad7b 100644
--- a/aurweb/routers/pkgbase.py
+++ b/aurweb/routers/pkgbase.py
@@ -318,7 +318,7 @@ async def pkgbase_comment_pin(request: Request, name: str, id: int,
     comment = get_pkgbase_comment(pkgbase, id)
 
     has_cred = request.user.has_credential(creds.COMMENT_PIN,
-                                           approved=[pkgbase.Maintainer])
+                                           approved=comment.maintainers())
     if not has_cred:
         _ = l10n.get_translator_for_request(request)
         raise HTTPException(
@@ -353,7 +353,7 @@ async def pkgbase_comment_unpin(request: Request, name: str, id: int,
     comment = get_pkgbase_comment(pkgbase, id)
 
     has_cred = request.user.has_credential(creds.COMMENT_PIN,
-                                           approved=[pkgbase.Maintainer])
+                                           approved=comment.maintainers())
     if not has_cred:
         _ = l10n.get_translator_for_request(request)
         raise HTTPException(
diff --git a/templates/partials/comment_actions.html b/templates/partials/comment_actions.html
index 78c4cc22..bf6103d7 100644
--- a/templates/partials/comment_actions.html
+++ b/templates/partials/comment_actions.html
@@ -47,13 +47,13 @@
 
     {% endif %}
 
-    {% if request.user.has_credential(creds.COMMENT_PIN, approved=[comment.PackageBase.Maintainer]) %}
+    {% if request.user.has_credential(creds.COMMENT_PIN, approved=comment.maintainers()) %}
         {% if comment.PinnedTS %}
             <form class="pin-comment-form"
                   method="post"
                   action="/pkgbase/{{ comment.PackageBase.Name }}/comments/{{ comment.ID }}/unpin"
             >
-                <fieldset style="display:inline;">
+                <fieldset style="display: inline;">
                     <input type="hidden" name="next" value="{{ request.url.path }}" />
                     <input type="image"
                            class="pin-comment"
diff --git a/templates/partials/packages/details.html b/templates/partials/packages/details.html
index 0c5bc3b9..22d519b9 100644
--- a/templates/partials/packages/details.html
+++ b/templates/partials/packages/details.html
@@ -114,7 +114,7 @@
                 </a>
                 {% set len = comaintainers | length %}
                 {% if comaintainers %}
-                    ({% for co in comaintainers %}<a href="{{ co.User | account_url }}">{{ co.User }}</a>{% if loop.index < len %}, {% endif %}{% endfor %})
+                    ({% for co in comaintainers %}<a href="{{ co | account_url }}">{{ co }}</a>{% if loop.index < len %}, {% endif %}{% endfor %})
                 {% endif %}
             {% else %}
                 {{ pkgbase.Maintainer.Username | default("None" | tr) }}
diff --git a/test/test_pkgbase_routes.py b/test/test_pkgbase_routes.py
index 03b55063..5edae592 100644
--- a/test/test_pkgbase_routes.py
+++ b/test/test_pkgbase_routes.py
@@ -534,6 +534,35 @@ def test_pkgbase_comment_undelete_not_found(client: TestClient,
     assert resp.status_code == int(HTTPStatus.NOT_FOUND)
 
 
+def test_pkgbase_comment_pin_as_co(client: TestClient, package: Package,
+                                   comment: PackageComment):
+    comaint = create_user("comaint1")
+
+    with db.begin():
+        db.create(PackageComaintainer, PackageBase=package.PackageBase,
+                  User=comaint, Priority=1)
+
+    # Pin the comment.
+    pkgbasename = package.PackageBase.Name
+    endpoint = f"/pkgbase/{pkgbasename}/comments/{comment.ID}/pin"
+    cookies = {"AURSID": comaint.login(Request(), "testPassword")}
+    with client as request:
+        resp = request.post(endpoint, cookies=cookies)
+    assert resp.status_code == int(HTTPStatus.SEE_OTHER)
+
+    # Assert that PinnedTS got set.
+    assert comment.PinnedTS > 0
+
+    # Unpin the comment we just pinned.
+    endpoint = f"/pkgbase/{pkgbasename}/comments/{comment.ID}/unpin"
+    with client as request:
+        resp = request.post(endpoint, cookies=cookies)
+    assert resp.status_code == int(HTTPStatus.SEE_OTHER)
+
+    # Let's assert that PinnedTS was unset.
+    assert comment.PinnedTS == 0
+
+
 def test_pkgbase_comment_pin(client: TestClient,
                              maintainer: User,
                              package: Package,