diff --git a/static/index.html b/static/index.html
index 7dd9bd9..b6483b6 100644
--- a/static/index.html
+++ b/static/index.html
@@ -101,6 +101,7 @@
                             <option value="en">English</option>
                         </select>
                     </div>
+                    <p class="cps-exp-note" data-i18n="cps_language_note">The selected language must match your CPS installation language, otherwise the import will fail.</p>
                     <table class="cps-tg-table">
                         <thead>
                             <tr>
diff --git a/static/locales/de.json b/static/locales/de.json
index c9e4766..6ca405b 100644
--- a/static/locales/de.json
+++ b/static/locales/de.json
@@ -48,6 +48,7 @@
     "cps_add_tg_placeholder": "TG per ID oder Name hinzufügen...",
     "cps_alias_format": "Kanal-Alias-Format",
     "cps_language": "CPS-Sprache",
+    "cps_language_note": "Die gew\u00e4hlte Sprache muss mit der Sprache Ihrer CPS-Installation \u00fcbereinstimmen, andernfalls schl\u00e4gt der Import fehl.",
     "cps_step1_label": "Schritt 1: Kontakte importieren",
     "cps_download_contacts": "Kontakte CSV herunterladen",
     "cps_step2_label": "Schritt 2: Zone einfügen",
diff --git a/static/locales/en.json b/static/locales/en.json
index 786a659..eb87c4d 100644
--- a/static/locales/en.json
+++ b/static/locales/en.json
@@ -48,6 +48,7 @@
     "cps_add_tg_placeholder": "Add TG by ID or name...",
     "cps_alias_format": "Channel alias format",
     "cps_language": "CPS language",
+    "cps_language_note": "The selected language must match your CPS installation language, otherwise the import will fail.",
     "cps_step1_label": "Step 1: Import contacts",
     "cps_download_contacts": "Download Contacts CSV",
     "cps_step2_label": "Step 2: Paste zone",
diff --git a/static/locales/es.json b/static/locales/es.json
index 10188fa..d312b2c 100644
--- a/static/locales/es.json
+++ b/static/locales/es.json
@@ -48,6 +48,7 @@
     "cps_add_tg_placeholder": "Añadir TG por ID o nombre...",
     "cps_alias_format": "Formato de alias del canal",
     "cps_language": "Idioma CPS",
+    "cps_language_note": "El idioma seleccionado debe coincidir con el idioma de su instalaci\u00f3n de CPS, de lo contrario la importaci\u00f3n fallar\u00e1.",
     "cps_step1_label": "Paso 1: Importar contactos",
     "cps_download_contacts": "Descargar contactos CSV",
     "cps_step2_label": "Paso 2: Pegar zona",
diff --git a/static/locales/fr.json b/static/locales/fr.json
index c04f77a..84cbc89 100644
--- a/static/locales/fr.json
+++ b/static/locales/fr.json
@@ -48,6 +48,7 @@
     "cps_add_tg_placeholder": "Ajouter TG par ID ou nom...",
     "cps_alias_format": "Format d'alias du canal",
     "cps_language": "Langue CPS",
+    "cps_language_note": "La langue s\u00e9lectionn\u00e9e doit correspondre \u00e0 la langue de votre installation CPS, sinon l'importation \u00e9chouera.",
     "cps_step1_label": "Étape 1 : Importer les contacts",
     "cps_download_contacts": "Télécharger contacts CSV",
     "cps_step2_label": "Étape 2 : Coller la zone",
diff --git a/static/locales/it.json b/static/locales/it.json
index 839021c..4c4dc1a 100644
--- a/static/locales/it.json
+++ b/static/locales/it.json
@@ -48,6 +48,7 @@
     "cps_add_tg_placeholder": "Aggiungi TG per ID o nome...",
     "cps_alias_format": "Formato alias canale",
     "cps_language": "Lingua CPS",
+    "cps_language_note": "La lingua selezionata deve corrispondere alla lingua della propria installazione CPS, altrimenti l'importazione fallir\u00e0.",
     "cps_step1_label": "Passo 1: Importa contatti",
     "cps_download_contacts": "Scarica contatti CSV",
     "cps_step2_label": "Passo 2: Incolla zona",
diff --git a/static/locales/pl.json b/static/locales/pl.json
index 6f70001..dd6e1a0 100644
--- a/static/locales/pl.json
+++ b/static/locales/pl.json
@@ -50,6 +50,7 @@
     "cps_add_tg_placeholder": "Dodaj TG po ID lub nazwie...",
     "cps_alias_format": "Format aliasu kanału",
     "cps_language": "J\u0119zyk CPS",
+    "cps_language_note": "Wybrany j\u0119zyk musi odpowiada\u0107 j\u0119zykowi instalacji CPS, w przeciwnym razie import si\u0119 nie powiedzie.",
     "cps_step1_label": "Krok 1: Importuj kontakty",
     "cps_download_contacts": "Pobierz kontakty CSV",
     "cps_step2_label": "Krok 2: Wklej strefę",