4 files changed, 5 insertions, 5 deletions
diff --git a/src/ltc/pk/dh/dh_free.c b/src/ltc/pk/dh/dh_free.c
index b149a94e..ff56b006 100644
--- a/src/ltc/pk/dh/dh_free.c
+++ b/src/ltc/pk/dh/dh_free.c
@@ -12,7 +12,7 @@
 void dh_free(dh_key *key)
 {
    LTC_ARGCHKVD(key != NULL);
-   mp_cleanup_multi(&key->prime, &key->base, &key->y, &key->x, NULL);
+   mp_cleanup_multi(&key->prime, &key->base, &key->y, &key->x, LTC_NULL);
 }
 
 #endif /* LTC_MDH */
diff --git a/src/ltc/pk/dh/dh_import.c b/src/ltc/pk/dh/dh_import.c
index 5db1be38..a067a327 100644
--- a/src/ltc/pk/dh/dh_import.c
+++ b/src/ltc/pk/dh/dh_import.c
@@ -22,7 +22,7 @@ int dh_import(const unsigned char *in, unsigned long inlen, dh_key *key)
    LTC_ARGCHK(key != NULL);
 
    /* init */
-   if ((err = mp_init_multi(&key->x, &key->y, &key->base, &key->prime, NULL)) != CRYPT_OK) {
+   if ((err = mp_init_multi(&key->x, &key->y, &key->base, &key->prime, LTC_NULL)) != CRYPT_OK) {
       return err;
    }
 
diff --git a/src/ltc/pk/dh/dh_set.c b/src/ltc/pk/dh/dh_set.c
index 1f094f20..e25db089 100644
--- a/src/ltc/pk/dh/dh_set.c
+++ b/src/ltc/pk/dh/dh_set.c
@@ -26,7 +26,7 @@ int dh_set_pg(const unsigned char *p, unsigned long plen,
    LTC_ARGCHK(g           != NULL);
    LTC_ARGCHK(ltc_mp.name != NULL);
 
-   if ((err = mp_init_multi(&key->x, &key->y, &key->base, &key->prime, NULL)) != CRYPT_OK) {
+   if ((err = mp_init_multi(&key->x, &key->y, &key->base, &key->prime, LTC_NULL)) != CRYPT_OK) {
       return err;
    }
 
@@ -58,7 +58,7 @@ int dh_set_pg_groupsize(int groupsize, dh_key *key)
    for (i = 0; (groupsize > ltc_dh_sets[i].size) && (ltc_dh_sets[i].size != 0); i++);
    if (ltc_dh_sets[i].size == 0) return CRYPT_INVALID_KEYSIZE;
 
-   if ((err = mp_init_multi(&key->x, &key->y, &key->base, &key->prime, NULL)) != CRYPT_OK) {
+   if ((err = mp_init_multi(&key->x, &key->y, &key->base, &key->prime, LTC_NULL)) != CRYPT_OK) {
       return err;
    }
    if ((err = mp_read_radix(key->base, ltc_dh_sets[i].base, 16)) != CRYPT_OK)  { goto LBL_ERR; }
diff --git a/src/ltc/pk/dh/dh_set_pg_dhparam.c b/src/ltc/pk/dh/dh_set_pg_dhparam.c
index 972c6ac0..1f2fb3b9 100644
--- a/src/ltc/pk/dh/dh_set_pg_dhparam.c
+++ b/src/ltc/pk/dh/dh_set_pg_dhparam.c
@@ -24,7 +24,7 @@ int dh_set_pg_dhparam(const unsigned char *dhparam, unsigned long dhparamlen, dh
    LTC_ARGCHK(dhparam     != NULL);
    LTC_ARGCHK(dhparamlen  > 0);
 
-   if ((err = mp_init_multi(&key->x, &key->y, &key->base, &key->prime, NULL)) != CRYPT_OK) {
+   if ((err = mp_init_multi(&key->x, &key->y, &key->base, &key->prime, LTC_NULL)) != CRYPT_OK) {
       return err;
    }
    if ((err = der_decode_sequence_multi(dhparam, dhparamlen,