diff --git a/src/public/app/widgets/type_widgets/options/i18n/i18n.ts b/src/public/app/widgets/type_widgets/options/i18n/i18n.ts
index d55971903..dad07a0bd 100644
--- a/src/public/app/widgets/type_widgets/options/i18n/i18n.ts
+++ b/src/public/app/widgets/type_widgets/options/i18n/i18n.ts
@@ -58,9 +58,9 @@ const TPL = `
         <div class="option-row min-days-row" style="display: none;">
             <label for="min-days-in-first-week">${t("i18n.min-days-in-first-week")}</label>
             <select id="min-days-in-first-week" class="form-select">
-                ${Array.from({length: 7}, (_, i) => i + 1)
-                    .map(num => `<option value="${num}">${num}</option>`)
-                    .join('')}
+                ${Array.from({ length: 7 }, (_, i) => i + 1)
+        .map(num => `<option value="${num}">${num}</option>`)
+        .join('')}
             </select>
         </div>
 
@@ -148,6 +148,8 @@ export default class LocalizationOptions extends OptionsWidget {
             } else {
                 $minDaysRow.hide();
             }
+
+            this.updateOption("firstWeekOfYear", value);
         });
 
         const currentValue = this.$widget.find('input[name="first-week-of-year"]:checked').val();
@@ -156,7 +158,7 @@ export default class LocalizationOptions extends OptionsWidget {
         }
 
         this.$widget.find("#min-days-in-first-week").on("change", () => {
-            const minDays = String(this.$widget.find("#min-days-in-first-week").val());
+            const minDays = this.$widget.find("#min-days-in-first-week").val();
             this.updateOption("minDaysInFirstWeek", minDays);
         });
 
diff --git a/src/public/app/widgets/type_widgets/options/options_widget.ts b/src/public/app/widgets/type_widgets/options/options_widget.ts
index fb4d9c0c3..5d614a42e 100644
--- a/src/public/app/widgets/type_widgets/options/options_widget.ts
+++ b/src/public/app/widgets/type_widgets/options/options_widget.ts
@@ -1,4 +1,4 @@
-import type { FilterOptionsByType, OptionDefinitions, OptionMap, OptionNames } from "../../../../../services/options_interface.js";
+import type { FilterOptionsByType, OptionMap, OptionNames } from "../../../../../services/options_interface.js";
 import type { EventData, EventListener } from "../../../components/app_context.js";
 import type FNote from "../../../entities/fnote.js";
 import { t } from "../../../services/i18n.js";
@@ -45,7 +45,7 @@ export default class OptionsWidget extends NoteContextAwareWidget implements Eve
         $checkbox.prop("checked", optionValue === "true");
     }
 
-    optionsLoaded(options: OptionMap) {}
+    optionsLoaded(options: OptionMap) { }
 
     async refresh() {
         this.toggleInt(this.isEnabled());
diff --git a/src/routes/api/options.ts b/src/routes/api/options.ts
index 140e2448e..aeb4e9009 100644
--- a/src/routes/api/options.ts
+++ b/src/routes/api/options.ts
@@ -72,6 +72,8 @@ const ALLOWED_OPTIONS = new Set<OptionNames>([
     "locale",
     "formattingLocale",
     "firstDayOfWeek",
+    "firstWeekOfYear",
+    "minDaysInFirstWeek",
     "languages",
     "textNoteEditorType",
     "textNoteEditorMultilineToolbar",