X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=st.c;h=1307fdf4ab3afee8d16af827b1a04a99152cf1ec;hb=af3bb68add1c40d19d0dee382009e21b0870a38f;hp=c71fa0677ee40d7ba71b5b67fbb70b4386500be8;hpb=2aefa348baf4b702fdce98eb105bcba175d8283f;p=st.git

diff --git a/st.c b/st.c
index c71fa06..1307fdf 100644
--- a/st.c
+++ b/st.c
@@ -367,7 +367,7 @@ static const char base64_digits[] = {
 char
 base64dec_getc(const char **src)
 {
-	while (**src && !isprint(**src))
+	while (**src && !isprint((unsigned char)**src))
 		(*src)++;
 	return **src ? *((*src)++) : '=';  /* emulate padding if string ends */
 }