diff --git a/src/components/01_branch-management/FormBranchInformation.vue b/src/components/01_branch-management/FormBranchInformation.vue
index ec92eda9..d48c7fb7 100644
--- a/src/components/01_branch-management/FormBranchInformation.vue
+++ b/src/components/01_branch-management/FormBranchInformation.vue
@@ -145,7 +145,7 @@ function formatCode(input: string | undefined, type: 'code' | 'number') {
           :rules="[
             (val) => !!val || $t('form.error.required'),
             (val) =>
-              /^[A-Za-z0-9\s.]+$/.test(val) || $t('form.error.letterOnly'),
+              /^[A-Za-z0-9\s.,]+$/.test(val) || $t('form.error.letterOnly'),
           ]"
           for="input-name-en"
         />