diff --git a/Seeder/www/constants.py b/Seeder/www/constants.py
index 33089c0a..eea07a30 100644
--- a/Seeder/www/constants.py
+++ b/Seeder/www/constants.py
@@ -1,6 +1,6 @@
 ''' Key is upper letter, value is upper regex to match it + diacritics '''
 ALPHABET_SEARCH_CONVERSION = {
-    '#': r'[^a-zA-Z]',
+    '#': r'[^A-ZÁČĎÉĚÍŇÓŘŠŤÚŮÝŽ]',  # a bit hacky without using Unicode regex
     'A': r'[AÁ]',
     'B': r'B',
     'C': r'[CČ]',