diff --git a/test/bench/kyber.cc b/test/bench/kyber.cc
index 06605144..2fba7b29 100644
--- a/test/bench/kyber.cc
+++ b/test/bench/kyber.cc
@@ -6,6 +6,11 @@
 #include <benchmark/benchmark.h>
 #include <benchmark/../../src/statistics.h>
 #include <benchmark/../../src/cycleclock.h>
+#include "kem/kyber/kyber512/avx2/polyvec.h"
+
+extern "C" {
+	#include "kem/kyber/kyber512/avx2/indcpa.h"
+}
 
 auto cpucycle = [](benchmark::State &st, int64_t cycles) {
     st.counters["CPU cycles: mean"] = benchmark::Counter(
@@ -14,9 +19,13 @@ auto cpucycle = [](benchmark::State &st, int64_t cycles) {
 
 static void BenchKyberMatK2(benchmark::State &st) {
 	int64_t t, total = 0;
+	polyvec a[KYBER_K];
+	uint8_t seed[32];
     for (auto _ : st) {
         t = benchmark::cycleclock::Now();
+        PQCLEAN_KYBER512_AVX2_gen_matrix(a, seed, 0);
         total += benchmark::cycleclock::Now() - t;
+        benchmark::DoNotOptimize(a);
     }
     cpucycle(st, total);
 }