diff --git a/runtime_data/config/kr.conf b/runtime_data/config/kr.conf
index e1dd8ff..babaae0 100644
--- a/runtime_data/config/kr.conf
+++ b/runtime_data/config/kr.conf
@@ -38,7 +38,7 @@ ocr_language = lkr
 
 ; Override for postprocess letters/numbers regex. 
 postprocess_regex_letters = \pL
-postprocess_regex_numbers = \pN
+postprocess_regex_numbers = [0-9]
 
 ; Whether the plate is always dark letters on light background, light letters on dark background, or both
 ; value can be either always, never, or auto