diff --git a/ox/text.py b/ox/text.py
index 482cb88..582e37e 100644
--- a/ox/text.py
+++ b/ox/text.py
@@ -318,11 +318,11 @@ def get_sort_name(name):
                 lastname, firstname = [names[2], names[0] + '-' + names[1].lower()]
             elif '-' in names_[1]:
                 lastname, firstname = [names[0], names[1] + '-' + names[2].lower()]
-            elif names[0] in ASIAN_FIRST_NAMES and names[2] not in ASIAN_FIRST_NAMES:
+            elif names[0].lower() in ASIAN_FIRST_NAMES and names[2].lower() not in ASIAN_FIRST_NAMES:
                 lastname, firstname = [names[2], names[0] + ' ' + names[1]]
-            elif names[0] not in ASIAN_FIRST_NAMES and names[2] in ASIAN_FIRST_NAMES:
+            elif names[0].lower() not in ASIAN_FIRST_NAMES and names[2].lower() in ASIAN_FIRST_NAMES:
                 lastname, firstname = [names[0], names[1] + ' ' + names[2]]
-            elif names[0] in ASIAN_LAST_NAMES:
+            elif names[0].lower() in ASIAN_LAST_NAMES:
                 lastname, firstname = [names[0], names[1] + ' ' + names[2]]
             else:
                 lastname, firstname = [names[2], names[0] + ' ' + names[1]]