diff --git a/app/Constants.php b/app/Constants.php
index a352d83cc88f..adc806c8ff1a 100644
--- a/app/Constants.php
+++ b/app/Constants.php
@@ -573,10 +573,20 @@ if (! defined('APP_NAME')) {
     // Fix for mPDF: https://github.com/kartik-v/yii2-mpdf/issues/9
     define('_MPDF_TTFONTDATAPATH', storage_path('framework/cache/'));
 
-    // TODO remove these translation functions
-    function uctrans($text)
+    function uctrans($text, $data = [])
     {
-        return ucwords(trans($text));
+        $locale = Session::get(SESSION_LOCALE);
+        $text = trans($text, $data);
+
+        return $locale == 'en' ? ucwords($text) : $text;
+    }
+
+    function utrans($text, $data = [])
+    {
+        $locale = Session::get(SESSION_LOCALE);
+        $text = trans($text, $data);
+
+        return $locale == 'en' ? strtoupper($text) : $text;
     }
 
     // optional trans: only return the string if it's translated
diff --git a/resources/views/emails/design2_html.blade.php b/resources/views/emails/design2_html.blade.php
index 86534cd7d266..6ff1b8db388e 100644
--- a/resources/views/emails/design2_html.blade.php
+++ b/resources/views/emails/design2_html.blade.php
@@ -28,7 +28,7 @@
                                         @if ($account->hasCustomLabel('due_date'))
                                             {{ $account->getLabel('due_date') }} {{ $account->formatDate($invoice->due_date) }}
                                         @else
-                                            {{ strtoupper(trans('texts.due_by', ['date' => $account->formatDate($invoice->due_date)])) }}
+                                            {{ utrans('texts.due_by', ['date' => $account->formatDate($invoice->due_date)]) }}
                                         @endif
                                     @endif
                                 </span><br />
diff --git a/resources/views/emails/design3_html.blade.php b/resources/views/emails/design3_html.blade.php
index abd344c107bd..8d3410e0c9f6 100644
--- a/resources/views/emails/design3_html.blade.php
+++ b/resources/views/emails/design3_html.blade.php
@@ -28,7 +28,7 @@
                                         @if ($account->hasCustomLabel('due_date'))
                                             {{ $account->getLabel('due_date') }} {{ $account->formatDate($invoice->due_date) }}
                                         @else
-                                            {{ strtoupper(trans('texts.due_by', ['date' => $account->formatDate($invoice->due_date)])) }}
+                                            {{ utrans('texts.due_by', ['date' => $account->formatDate($invoice->due_date)]) }}
                                         @endif
                                     @endif
                                 </span><br />