musl - musl - an implementation of the standard library for Linux-based systems

diff --git a/src/stdio/ungetwc.c b/src/stdio/ungetwc.c
index f7cde2e0..6871d034 100644
--- a/src/stdio/ungetwc.c
+++ b/src/stdio/ungetwc.c

@@ -8,7 +8,7 @@ wint_t ungetwc(wint_t c, FILE *f)

if (c == WEOF) return c;

/* Try conversion early so we can fail without locking if invalid */

- if (!isascii(c) && (l = wctomb(mbc, c)) < 0)

+ if (!isascii(c) && (l = wctomb((void *)mbc, c)) < 0)

return WEOF;

FLOCK(f);