diff --git a/src/core/chars_identify.cpp b/src/core/chars_identify.cpp
index 12b8922..7b6a95f 100644
--- a/src/core/chars_identify.cpp
+++ b/src/core/chars_identify.cpp
@@ -6,8 +6,6 @@
         */
 namespace easypr {
 
-#define NDEBUG
-
 //Öйú³µÅÆ
 const char strCharacters[] = {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9',
                               'A', 'B', 'C', 'D', 'E', 'F', 'G',