diff --git a/datasette/templates/base.html b/datasette/templates/base.html
index e1767deb..82ab48dd 100644
--- a/datasette/templates/base.html
+++ b/datasette/templates/base.html
@@ -71,6 +71,6 @@
 
 {% if select_templates %}<!-- Templates considered: {{ select_templates|join(", ") }} -->{% endif %}
 <script src="{{ urls.static('navigation-search.js') }}" defer></script>
-<navigation-search url="/-/jump"></navigation-search>
+<navigation-search url="{{ urls.path("/-/jump") }}"></navigation-search>
 </body>
 </html>
diff --git a/tests/test_html.py b/tests/test_html.py
index a9de5e79..96ee9c0c 100644
--- a/tests/test_html.py
+++ b/tests/test_html.py
@@ -943,6 +943,17 @@ def test_base_url_config(app_client_base_url_prefix, path, use_prefix):
                 indent=4,
                 default=repr,
             )
+    for el in soup.find_all("navigation-search"):
+        assert el["url"] == "/prefix/-/jump", json.dumps(
+            {
+                "path": path,
+                "path_to_get": path_to_get,
+                "url": el["url"],
+                "element": str(el),
+            },
+            indent=4,
+            default=repr,
+        )
 
 
 def test_base_url_affects_filter_redirects(app_client_base_url_prefix):