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-rw-r--r--src/libstrongswan/collections/array.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/libstrongswan/collections/array.c b/src/libstrongswan/collections/array.c
index 314e8e916..75efb85bf 100644
--- a/src/libstrongswan/collections/array.c
+++ b/src/libstrongswan/collections/array.c
@@ -141,7 +141,7 @@ static void remove_tail(array_t *array, int idx)
/* move all items after idx one down */
memmove(array->data + get_size(array, idx + array->head),
array->data + get_size(array, idx + array->head + 1),
- get_size(array, array->count - idx));
+ get_size(array, array->count - 1 - idx));
array->count--;
array->tail++;
}