diff --git a/CHANGELOG.md b/CHANGELOG.md
index d64cb0e..9aa0ef2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 8.0.4
+
+- Properly handle uppercase special characters (@mib1185 - thx)
+
 ## 8.0.3
 
 - Drop compatibility for unsupported Python Version (@Viicos - thx)
diff --git a/slugify/__version__.py b/slugify/__version__.py
index 12c76b6..854038e 100644
--- a/slugify/__version__.py
+++ b/slugify/__version__.py
@@ -5,4 +5,4 @@
 __url__ = 'https://github.com/un33k/python-slugify'
 __license__ = 'MIT'
 __copyright__ = 'Copyright 2022 Val Neekman @ Neekware Inc.'
-__version__ = '8.0.3'
+__version__ = '8.0.4'
diff --git a/slugify/special.py b/slugify/special.py
index 0b602cf..918cb2a 100644
--- a/slugify/special.py
+++ b/slugify/special.py
@@ -9,7 +9,6 @@ def add_uppercase_char(char_list: list[tuple[str, str]]) -> list[tuple[str, str]
         upper_dict = char.upper(), xlate.capitalize()
         if upper_dict not in char_list and char != upper_dict[0]:
             char_list.insert(0, upper_dict)
-        return char_list
     return char_list
 
 
diff --git a/test.py b/test.py
index 2534499..d13ef94 100644
--- a/test.py
+++ b/test.py
@@ -4,6 +4,7 @@
 import unittest
 from contextlib import contextmanager
 
+from slugify import PRE_TRANSLATIONS
 from slugify import slugify
 from slugify import smart_truncate
 from slugify.__main__ import slugify_params, parse_args
@@ -236,9 +237,11 @@ def test_replacements_german_umlaut_custom(self):
         r = slugify(txt, replacements=[['Ü', 'UE'], ['ü', 'ue']])
         self.assertEqual(r, "ueber-ueber-german-umlaut")
 
+    def test_pre_translation(self):
+        self.assertEqual(PRE_TRANSLATIONS, [('Ю', 'U'), ('Щ', 'Sch'), ('У', 'Y'), ('Х', 'H'), ('Я', 'Ya'), ('Ё', 'E'), ('ё', 'e'), ('я', 'ya'), ('х', 'h'), ('у', 'y'), ('щ', 'sch'), ('ю', 'u'), ('Ü', 'Ue'), ('Ö', 'Oe'), ('Ä', 'Ae'), ('ä', 'ae'), ('ö', 'oe'), ('ü', 'ue'), ('Ϋ́', 'Y'), ('Ϋ', 'Y'), ('Ύ', 'Y'), ('Υ', 'Y'), ('Χ', 'Ch'), ('χ', 'ch'), ('Ξ', 'X'), ('ϒ', 'Y'), ('υ', 'y'), ('ύ', 'y'), ('ϋ', 'y'), ('ΰ', 'y')])
 
-class TestSlugifyUnicode(unittest.TestCase):
 
+class TestSlugifyUnicode(unittest.TestCase):
     def test_extraneous_seperators(self):
 
         txt = "This is a test ---"