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-rw-r--r--statistics.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/statistics.c b/statistics.c
index 845bc2a03..56b04f283 100644
--- a/statistics.c
+++ b/statistics.c
@@ -132,7 +132,8 @@ void show_dive_stats(struct dive *dive)
set_label(info_stat_w.date, buf);
set_label(info_stat_w.dive_time, "%d min", (dive->duration.seconds + 30) / 60);
if (prev_dive)
- set_label(info_stat_w.surf_intv, get_time_string(dive->when - prev_dive->when, 4));
+ set_label(info_stat_w.surf_intv,
+ get_time_string(dive->when - (prev_dive->when + prev_dive->duration.seconds), 4));
else
set_label(info_stat_w.surf_intv, "unknown");
value = get_depth_units(dive->maxdepth.mm, &decimals, &unit);