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-rw-r--r--pith/ical.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/pith/ical.c b/pith/ical.c
index d2c8e2ba..bfad8078 100644
--- a/pith/ical.c
+++ b/pith/ical.c
@@ -1534,7 +1534,7 @@ ical_parse_rrule(RRULE_S **rrulep, char **text)
int
ical_non_ascii_valid(unsigned char c)
{
- static char icu[6];
+ static unsigned char icu[6];
static int utf8_len = 0;
static int utf8_type = 0;
int rv;