diff --git a/api.handlers.ops.go b/api.handlers.ops.go
index e8d4a04..766d5ea 100644
--- a/api.handlers.ops.go
+++ b/api.handlers.ops.go
@@ -169,9 +169,10 @@ func (api *APIHandler) Maintenance(w http.ResponseWriter, r *http.Request, ps ht
 
 	case "show":
 		response = map[string]interface{}{
-			"message": "service currently unvailable.",
-			"reason":  api.mode.reason,
-			"since":   api.mode.started.Format(time.RFC1123),
+			"requestid": requestID,
+			"message":   "service currently unvailable.",
+			"reason":    api.mode.reason,
+			"since":     api.mode.started.Format(time.RFC1123),
 		}
 		w.WriteHeader(http.StatusServiceUnavailable)
 	}
diff --git a/tests.middlewares_test.go b/tests.middlewares_test.go
index 6e6bfb4..b2f74a2 100644
--- a/tests.middlewares_test.go
+++ b/tests.middlewares_test.go
@@ -1,6 +1,7 @@
 package main
 
 import (
+	"context"
 	"io"
 	"net/http"
 	"net/http/httptest"
@@ -122,6 +123,7 @@ func TestMaintenanceModeMiddleware(t *testing.T) {
 		ts := NewMockClocker().Now()
 		api.mode.started = ts
 		api.mode.reason = "ongoing maintenance."
+		req = req.WithContext(context.WithValue(req.Context(), ContextRequestID, "abc"))
 		wrapped := api.MaintenanceModeMiddleware(handler)
 		wrapped(w, req, nil)
 		// target handler will not be called but the maintenance handler must kick-in.
@@ -131,7 +133,7 @@ func TestMaintenanceModeMiddleware(t *testing.T) {
 		defer res.Body.Close()
 		data, err := io.ReadAll(res.Body)
 		require.NoError(t, err)
-		expected := `{"message":"service currently unvailable.","reason":"ongoing maintenance.", "since":"Sun, 02 Jul 2023 00:00:00 UTC"}`
+		expected := `{"requestid":"abc","message":"service currently unvailable.","reason":"ongoing maintenance.", "since":"Sun, 02 Jul 2023 00:00:00 UTC"}`
 		assert.JSONEq(t, expected, string(data))
 	})
 }