1 files changed, 5 insertions, 4 deletions

diff --git a/ui-shared.c b/ui-shared.c
index 151ac17..acd8ab5 100644
--- a/ui-shared.c
+++ b/ui-shared.c
@@ -22,10 +22,11 @@ static char *http_date(time_t t)
         static char month[][4] =
                 {"Jan", "Feb", "Mar", "Apr", "May", "Jun",
                  "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"};
-        struct tm *tm = gmtime(&t);
-        return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm->tm_wday],
-                   tm->tm_mday, month[tm->tm_mon], 1900 + tm->tm_year,
-                   tm->tm_hour, tm->tm_min, tm->tm_sec);
+        struct tm tm;
+        gmtime_r(&t, &tm);
+        return fmt("%s, %02d %s %04d %02d:%02d:%02d GMT", day[tm.tm_wday],
+                   tm.tm_mday, month[tm.tm_mon], 1900 + tm.tm_year,
+                   tm.tm_hour, tm.tm_min, tm.tm_sec);
 }
 
 void cgit_print_error(const char *fmt, ...)