diff --git a/langs/nan.json b/langs/nan.json
index 4b97ab695..465db8fdf 100644
--- a/langs/nan.json
+++ b/langs/nan.json
@@ -1,9 +1,10 @@
 {
     "advanced": {
-        "title": "Advanced features"
+        "title": "高级功能"
     },
     "centerMessage": {
-        "allFilteredAway": "当前视图中没有满足过滤条件的要素"
+        "allFilteredAway": "当前视图中没有满足过滤条件的要素",
+        "loadingData": "加载数据…"
     },
     "validation": {
         "wikidata": {
@@ -11,4 +12,4 @@
             "startsWithQ": "A wikidata identifier starts with Q and is followed by a number"
         }
     }
-}
\ No newline at end of file
+}