diff --git a/client/deps/hardnested/hardnested_bruteforce.c b/client/deps/hardnested/hardnested_bruteforce.c
index 0c768f400..a589040ac 100644
--- a/client/deps/hardnested/hardnested_bruteforce.c
+++ b/client/deps/hardnested/hardnested_bruteforce.c
@@ -465,7 +465,8 @@ float brute_force_benchmark(void) {
 
     free(test_candidates[0].states[ODD_STATE]);
     free(test_candidates[0].states[EVEN_STATE]);
-
+    test_candidates[0].len[ODD_STATE] = 0;
+    test_candidates[0].len[EVEN_STATE] = 0;
     return bf_rate;
 }