1 files changed, 2 insertions, 2 deletions
diff --git a/mpfr.c b/mpfr.c
index f2c58116..0bb5b435 100644
--- a/mpfr.c
+++ b/mpfr.c
@@ -370,11 +370,11 @@ mpg_format_val(const char *format, int index, NODE *s)
 	if (is_mpg_integer(s) || mpfr_integer_p(s->mpg_numbr)) {
 		/* integral value, use %d */
 		r = format_tree("%d", 2, dummy, 2);
-		s->stfmt = -1;
+		s->stfmt = STFMT_UNUSED;
 	} else {
 		r = format_tree(format, fmt_list[index]->stlen, dummy, 2);
 		assert(r != NULL);
-		s->stfmt = (char) index;
+		s->stfmt = index;
 	}
 	s->flags = oflags;
 	s->stlen = r->stlen;