diff --git a/resources/lang/pl_PL/list.php b/resources/lang/pl_PL/list.php
index 9e7e975a1e..d7864b5248 100644
--- a/resources/lang/pl_PL/list.php
+++ b/resources/lang/pl_PL/list.php
@@ -41,7 +41,7 @@ return [
     'repeat_freq'            => 'Powtarza się',
     'description'            => 'Opis',
     'amount'                 => 'Kwota',
-    'internal_reference'     => 'Internal reference',
+    'internal_reference'     => 'Wewnętrzny numer',
     'date'                   => 'Data',
     'interest_date'          => 'Stopa procentowa',
     'book_date'              => 'Data księgowania',
@@ -49,7 +49,7 @@ return [
     'due_date'               => 'Termin realizacji',
     'payment_date'           => 'Data płatności',
     'invoice_date'           => 'Data faktury',
-    'interal_reference'      => 'Internal reference',
+    'interal_reference'      => 'Wewnętrzny numer',
     'notes'                  => 'Notatki',
     'from'                   => 'Z',
     'piggy_bank'             => 'Skarbonka',