diff --git a/requirements.txt b/requirements.txt
index 0179809d..64a19f48 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -30,5 +30,5 @@ rotary_embedding_torch
 pyjyutping 
 g2pk2
 ko_pron
-eunjeon; sys_platform == 'windows'
-python_mecab_ko; sys_platform != 'windows'
+eunjeon; sys_platform == 'Windows'
+python_mecab_ko; sys_platform != 'Windows'