1 files changed, 1 insertions, 0 deletions
diff --git a/py/misc.h b/py/misc.h
index 97e16c23ec..044fef6236 100644
--- a/py/misc.h
+++ b/py/misc.h
@@ -100,6 +100,7 @@ bool unichar_isupper(unichar c);
 bool unichar_islower(unichar c);
 unichar unichar_tolower(unichar c);
 unichar unichar_toupper(unichar c);
+#define unichar_charlen(s, bytelen) (bytelen)
 
 /** variable string *********************************************/