diff --git a/crypto/tests/test_speed.c b/crypto/tests/test_speed.c
index c9e67b5ee..2d0dc347e 100644
--- a/crypto/tests/test_speed.c
+++ b/crypto/tests/test_speed.c
@@ -54,7 +54,7 @@ void bench_sign_ed25519(int iterations) {
   ed25519_secret_key sk;
   ed25519_signature sig;
 
-  memcpy(pk,
+  memcpy(sk,
          "\xc5\x5e\xce\x85\x8b\x0d\xdd\x52\x63\xf9\x68\x10\xfe\x14\x43\x7c\xd3"
          "\xb5\xe1\xfb\xd7\xc6\xa2\xec\x1e\x03\x1f\x05\xe8\x6d\x8b\xd5",
          32);
@@ -138,7 +138,7 @@ void bench_verify_ed25519(int iterations) {
   ed25519_secret_key sk;
   ed25519_signature sig;
 
-  memcpy(pk,
+  memcpy(sk,
          "\xc5\x5e\xce\x85\x8b\x0d\xdd\x52\x63\xf9\x68\x10\xfe\x14\x43\x7c\xd3"
          "\xb5\xe1\xfb\xd7\xc6\xa2\xec\x1e\x03\x1f\x05\xe8\x6d\x8b\xd5",
          32);