diff --git a/website/src/locales/vi.json b/website/src/locales/vi.json
index a48b2512..49345d9d 100644
--- a/website/src/locales/vi.json
+++ b/website/src/locales/vi.json
@@ -256,6 +256,7 @@
             "swisstopoSatellite": "swisstopo Satellite",
             "ignBe": "IGN Topo",
             "ignFrPlan": "IGN Plan",
+            "ignFrTopo": "IGN Topo",
             "ignFrScan25": "IGN SCAN25",
             "ignFrSatellite": "IGN Satellite",
             "ignEs": "IGN",