diff --git a/src/locales/ja/achv.json b/src/locales/ja/achv.json
index fd5e4b9e6c4..5916b1fbf73 100644
--- a/src/locales/ja/achv.json
+++ b/src/locales/ja/achv.json
@@ -265,5 +265,9 @@
   "INVERSE_BATTLE": {
     "name": "カガミよミガカ",
     "description": "反転バトルチャレンジを　クリアする\nるすアリク　をジンレャチルトバ転反"
+  },
+  "BREEDERS_IN_SPACE": {
+    "name": "Breeders in Space!",
+    "description": "Beat the Expert Pokémon Breeder in the Space Biome."
   }
 }