diff --git a/crowdin.yml b/crowdin.yml
index 24c6021b3..4137b471e 100644
--- a/crowdin.yml
+++ b/crowdin.yml
@@ -64,4 +64,37 @@ files:
   - source: "/tfc/patchouli_books/field_guide/en_us/**/*.json"
     translation: "/tfc/patchouli_books/field_guide/%locale_with_underscore%/**/%original_file_name%"
     update_option: "update_without_changes"
+
+    languages_mapping:
+      locale_with_underscore:
+        en-US: "en_us"
+        en-GB: "en_gb"
+        zh-CN: "zh_cn"
+        zh-TW: "zh_tw"
+        es-ES: "es_es"
+        pt-BR: "pt_br"
+        pt-PT: "pt_pt"
+        sv-SE: "sv_se"
+        en: "en_us"
+        ru: "ru_ru"
+        uk: "uk_ua"
+        ja: "ja_jp"
+        de: "de_de"
+        fr: "fr_fr"
+        it: "it_it"
+        ar: "ar_sa"
+        hu: "hu_hu"
+        fi: "fi_fi"
+        ro: "ro_ro"
+        ca: "ca_es"
+        da: "da_dk"
+        el: "el_gr"
+        cs: "cs_cz"
+        he: "he_il"
+        ko: "ko_kr"
+        nl: "nl_nl"
+        pl: "pl_pl"
+        sr: "sr_sp"
+        tr: "tr_tr"
+        vi: "vi_vn"