diff --git a/tests/unit/s2n_random_test.c b/tests/unit/s2n_random_test.c
index 0225d5548c2..cf6d62416d5 100644
--- a/tests/unit/s2n_random_test.c
+++ b/tests/unit/s2n_random_test.c
@@ -792,6 +792,8 @@ static int s2n_random_rand_bytes_after_cleanup_cb(struct random_test_case *test_
     return S2N_SUCCESS;
 }
 
+typedef int (*s2n_rand_meth_fn_type)(unsigned char *buf, int num);
+
 static int s2n_random_rand_bytes_before_init(struct random_test_case *test_case)
 {
     if (s2n_supports_custom_rand()) {
@@ -800,15 +802,14 @@ static int s2n_random_rand_bytes_before_init(struct random_test_case *test_case)
         EXPECT_EQUAL(RAND_bytes(rndbytes, sizeof(rndbytes)), 1);
         const RAND_METHOD *rand_method = RAND_get_rand_method();
         EXPECT_NOT_NULL(rand_method);
-        EXPECT_NOT_EQUAL((void *) rand_method->bytes, (void *) s2n_openssl_compat_rand);
+        EXPECT_NOT_EQUAL((s2n_rand_meth_fn_type) rand_method->bytes, (s2n_rand_meth_fn_type) s2n_openssl_compat_rand);
 
-        /* int (*bytes)(uint8_t *buf, size_t num); */
         EXPECT_SUCCESS(s2n_init());
 
         /* The global random method is overridden after calling s2n_init() */
         const RAND_METHOD *custom_rand_method = RAND_get_rand_method();
         EXPECT_NOT_NULL(custom_rand_method);
-        EXPECT_EQUAL((void *) custom_rand_method->bytes, (void *) s2n_openssl_compat_rand);
+        EXPECT_EQUAL((s2n_rand_meth_fn_type) custom_rand_method->bytes, (s2n_rand_meth_fn_type) s2n_openssl_compat_rand);
 
         /* RAND_bytes is still successful */
         EXPECT_EQUAL(RAND_bytes(rndbytes, sizeof(rndbytes)), 1);