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-rw-r--r--libdivecomputer.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libdivecomputer.c b/libdivecomputer.c
index 8c5a4f180..e3153572a 100644
--- a/libdivecomputer.c
+++ b/libdivecomputer.c
@@ -60,7 +60,7 @@ static int parse_gasmixes(device_data_t *devdata, struct dive *dive, dc_parser_t
he = gasmix.helium * 1000 + 0.5;
/* Ignore bogus data - libdivecomputer does some crazy stuff */
- if (o2 <= AIR_PERMILLE || o2 >= 1000)
+ if (o2 + he <= AIR_PERMILLE || o2 >= 1000)
o2 = 0;
if (he < 0 || he >= 800 || o2+he >= 1000)
he = 0;