1 files changed, 1 insertions, 1 deletions
diff --git a/utf.h b/utf.h
index 77bd175..bbaeaf7 100644
--- a/utf.h
+++ b/utf.h
@@ -1,3 +1,3 @@
 size_t utf8enc(unsigned char *, uint_least32_t);
-size_t utf8dec(uint_least32_t *, const char *, size_t);
+size_t utf8dec(uint_least32_t *, const unsigned char *, size_t);
 size_t utf16enc(uint_least16_t *, uint_least32_t);