diff --git a/src/common/crypto.h b/src/common/crypto.h
index dcec90314..c77355731 100644
--- a/src/common/crypto.h
+++ b/src/common/crypto.h
@@ -38,6 +38,7 @@ typedef struct aes_cnt_cipher crypto_cipher_t;
 typedef struct crypto_dh_t crypto_dh_t;
 
 /* global state */
+int crypto_init_siphash_key(void);
 int crypto_early_init(void) ATTR_WUR;
 int crypto_global_init(int hardwareAccel,
                        const char *accelName,
diff --git a/src/common/crypto_rand.h b/src/common/crypto_rand.h
index c78195633..4eac94f57 100644
--- a/src/common/crypto_rand.h
+++ b/src/common/crypto_rand.h
@@ -29,7 +29,6 @@ uint64_t crypto_rand_uint64(uint64_t max);
 double crypto_rand_double(void);
 struct tor_weak_rng_t;
 void crypto_seed_weak_rng(struct tor_weak_rng_t *rng);
-int crypto_init_siphash_key(void);
 
 char *crypto_random_hostname(int min_rand_len, int max_rand_len,
                              const char *prefix, const char *suffix);