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

diff --git a/src/stdio/ungetc.c b/src/stdio/ungetc.c
index 180673a4..bc629d4c 100644
--- a/src/stdio/ungetc.c
+++ b/src/stdio/ungetc.c

@@ -16,5 +16,5 @@ int ungetc(int c, FILE *f)

f->flags &= ~F_EOF;

FUNLOCK(f);

- return c;

+ return (unsigned char)c;

}