1 files changed, 1 insertions, 1 deletions

diff --git a/uchars.h b/uchars.h
index 6e68e7c..925593b 100644
--- a/uchars.h
+++ b/uchars.h
@@ -3,4 +3,4 @@
 #include <stdbool.h>
 
 char *ascii(const char16_t *wstr, bool translate_slashes);
-void c16cpy(char16_t *out, uint32_t *outsize, char *s);
+void c16cpy(char16_t *out, uint32_t *outsize, const char *s);