diff --git a/test_runner/fixtures/neon_fixtures.py b/test_runner/fixtures/neon_fixtures.py
index c4705168b7..b7c192bb8d 100644
--- a/test_runner/fixtures/neon_fixtures.py
+++ b/test_runner/fixtures/neon_fixtures.py
@@ -1773,6 +1773,16 @@ class NeonPageserver(PgProtocol):
         client = self.http_client()
         return client.tenant_attach(tenant_id, config, config_null, generation=generation)
 
+    def tenant_location_configure(self, tenant_id: TenantId, config: dict[str, Any]):
+        # This API is only for use when generations are enabled
+        assert self.env.attachment_service is not None
+
+        if config["mode"].startswith("Attached") and "generation" not in config:
+            config["generation"] = self.env.attachment_service.attach_hook(tenant_id, self.id)
+
+        client = self.http_client()
+        return client.tenant_location_conf(tenant_id, config)
+
 
 def append_pageserver_param_overrides(
     params_to_update: List[str],
diff --git a/test_runner/fixtures/pageserver/http.py b/test_runner/fixtures/pageserver/http.py
index d2c3715c52..49e2aeb5ed 100644
--- a/test_runner/fixtures/pageserver/http.py
+++ b/test_runner/fixtures/pageserver/http.py
@@ -247,6 +247,14 @@ class PageserverHttpClient(requests.Session):
         res = self.post(f"http://localhost:{self.port}/v1/tenant/{tenant_id}/detach", params=params)
         self.verbose_error(res)
 
+    def tenant_location_conf(self, tenant_id: TenantId, location_conf=dict[str, Any]):
+        body = location_conf.copy()
+        body["tenant_id"] = str(tenant_id)
+        res = self.put(
+            f"http://localhost:{self.port}/v1/tenant/{tenant_id}/location_config", json=body
+        )
+        self.verbose_error(res)
+
     def tenant_delete(self, tenant_id: TenantId):
         res = self.delete(f"http://localhost:{self.port}/v1/tenant/{tenant_id}")
         self.verbose_error(res)