diff --git a/aurweb/routers/packages.py b/aurweb/routers/packages.py
index b623ca10..8f4a7e1f 100644
--- a/aurweb/routers/packages.py
+++ b/aurweb/routers/packages.py
@@ -773,17 +773,42 @@ async def requests_close_post(request: Request, id: int,
     return RedirectResponse("/requests", status_code=int(HTTPStatus.SEE_OTHER))
 
 
+@router.get("/pkgbase/{name}/flag")
+@auth_required(True, redirect="/pkgbase/{name}")
+async def pkgbase_flag_get(request: Request, name: str):
+    pkgbase = get_pkg_or_base(name, PackageBase)
+
+    has_cred = request.user.has_credential("CRED_PKGBASE_FLAG")
+    if not has_cred or pkgbase.Flagger is not None:
+        return RedirectResponse(f"/pkgbase/{name}",
+                                status_code=int(HTTPStatus.SEE_OTHER))
+
+    context = make_context(request, "Flag Package Out-Of-Date")
+    context["pkgbase"] = pkgbase
+    return render_template(request, "packages/flag.html", context)
+
+
 @router.post("/pkgbase/{name}/flag")
 @auth_required(True, redirect="/pkgbase/{name}")
-async def pkgbase_flag(request: Request, name: str):
+async def pkgbase_flag_post(request: Request, name: str,
+                            comments: str = Form(default=str())):
     pkgbase = get_pkg_or_base(name, PackageBase)
 
+    if not comments:
+        context = make_context(request, "Flag Package Out-Of-Date")
+        context["pkgbase"] = pkgbase
+        context["errors"] = ["The selected packages have not been flagged, "
+                             "please enter a comment."]
+        return render_template(request, "packages/flag.html", context,
+                               status_code=int(HTTPStatus.BAD_REQUEST))
+
     has_cred = request.user.has_credential("CRED_PKGBASE_FLAG")
     if has_cred and not pkgbase.Flagger:
         now = int(datetime.utcnow().timestamp())
         with db.begin():
             pkgbase.OutOfDateTS = now
             pkgbase.Flagger = request.user
+            pkgbase.FlaggerComment = comments
 
     return RedirectResponse(f"/pkgbase/{name}",
                             status_code=int(HTTPStatus.SEE_OTHER))
@@ -800,6 +825,7 @@ async def pkgbase_unflag(request: Request, name: str):
         with db.begin():
             pkgbase.OutOfDateTS = None
             pkgbase.Flagger = None
+            pkgbase.FlaggerComment = str()
 
     return RedirectResponse(f"/pkgbase/{name}",
                             status_code=int(HTTPStatus.SEE_OTHER))
diff --git a/templates/packages/flag.html b/templates/packages/flag.html
new file mode 100644
index 00000000..4e133acb
--- /dev/null
+++ b/templates/packages/flag.html
@@ -0,0 +1,57 @@
+{% extends "partials/layout.html" %}
+
+{% block pageContent %}
+    <div class="box">
+        <h2>{{ "Flag Package Out-Of-Date" | tr }}: {{ pkgbase.Name }}</h2>
+
+        <p>
+            {{
+                "Use this form to flag the package base %s%s%s and "
+                "the following packages out-of-date: "
+                | tr | format("<strong>", pkgbase.Name, "</strong>") | safe
+            }}
+        </p>
+
+        <ul>
+            {% for package in pkgbase.packages.all() %}
+                <li>{{ package.Name }}</li>
+            {% endfor %}
+        </ul>
+
+        <p>
+            {{
+                "Please do %snot%s use this form to report bugs. "
+                "Use the package comments instead."
+                | tr | format("<strong>", "</strong>") | safe
+            }}
+            {{
+                "Enter details on why the package is out-of-date below, "
+                "preferably including links to the release announcement "
+                "or the new release tarball." | tr
+            }}
+        </p>
+
+        {% if errors %}
+            <ul class="errorlist">
+                {% for error in errors %}
+                    <li>{{ error | tr }}</li>
+                {% endfor %}
+            </ul>
+        {% endif %}
+
+        <form action="/pkgbase/{{ pkgbase.Name }}/flag" method="post">
+            <fieldset>
+                <p>
+                    <label for="id_comments">{{ "Comments" | tr }}:</label>
+                    <textarea id="id_comments"
+                              name="comments"
+                              rows="5"
+                              cols="50"></textarea>
+                </p>
+                <p>
+                    <input class="button" type="submit" value="{{ 'Flag' | tr }}" />
+                </p>
+            </fieldset>
+        </form>
+    </div>
+{% endblock %}
diff --git a/test/test_packages_routes.py b/test/test_packages_routes.py
index 86949996..12d7e33e 100644
--- a/test/test_packages_routes.py
+++ b/test/test_packages_routes.py
@@ -1698,13 +1698,31 @@ def test_pkgbase_flag(client: TestClient, user: User, maintainer: User,
     # We shouldn't have flagged the package yet; assert so.
     assert pkgbase.Flagger is None
 
-    # Flag it.
     cookies = {"AURSID": user.login(Request(), "testPassword")}
     endpoint = f"/pkgbase/{pkgbase.Name}/flag"
+
+    # Get the flag page.
+    with client as request:
+        resp = request.get(endpoint, cookies=cookies)
+    assert resp.status_code == int(HTTPStatus.OK)
+
+    # Try to flag it without a comment.
     with client as request:
         resp = request.post(endpoint, cookies=cookies)
+    assert resp.status_code == int(HTTPStatus.BAD_REQUEST)
+
+    # Flag it with a valid comment.
+    with client as request:
+        resp = request.post(endpoint, {"comments": "Test"}, cookies=cookies)
     assert resp.status_code == int(HTTPStatus.SEE_OTHER)
     assert pkgbase.Flagger == user
+    assert pkgbase.FlaggerComment == "Test"
+
+    # Now try to perform a get; we should be redirected because
+    # it's already flagged.
+    with client as request:
+        resp = request.get(endpoint, cookies=cookies, allow_redirects=False)
+    assert resp.status_code == int(HTTPStatus.SEE_OTHER)
 
     # Now, test that the 'maintainer' user can't unflag it, because they
     # didn't flag it to begin with.