diff --git a/src/widgets/numformatter.h b/src/widgets/numformatter.h
index f32306dd7..daa82a1a5 100644
--- a/src/widgets/numformatter.h
+++ b/src/widgets/numformatter.h
@@ -16,7 +16,7 @@
 
 #include "wx/string.h"
 
-#define wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG 1
+#define wxHAS_LONG_LONG_T_DIFFERENT_FROM_LONG
 
 // Helper class for formatting numbers with thousands separators which also
 // supports parsing the numbers formatted by it.