diff --git a/sphinx_needs/directives/needservice.py b/sphinx_needs/directives/needservice.py
index 44e9da500..a36465af6 100644
--- a/sphinx_needs/directives/needservice.py
+++ b/sphinx_needs/directives/needservice.py
@@ -93,6 +93,7 @@ def run(self) -> Sequence[nodes.Node]:
                 "constraints",
                 "content",
                 *needs_schema.iter_extra_field_names(),
+                *needs_schema.iter_link_field_names(),
             }
             for datum in service_data:
                 options = {}
diff --git a/tests/test_open_needs_service.py b/tests/test_open_needs_service.py
index 211eff3ea..85a13c38a 100644
--- a/tests/test_open_needs_service.py
+++ b/tests/test_open_needs_service.py
@@ -104,6 +104,7 @@ def test_ons_service(test_app):
     assert "Test rocket power" in html
     assert "ONS_TEST_NEP_004" in html
     assert "NEP_003" in html
+    assert "links outgoing" in html
 
     assert "open" in html
     assert "Debug data" in html