diff --git a/crypto/asn1/a_enum.c b/crypto/asn1/a_enum.c
index 35232d82b..ad8f0ffd1 100644
--- a/crypto/asn1/a_enum.c
+++ b/crypto/asn1/a_enum.c
@@ -153,7 +153,7 @@ ASN1_ENUMERATED *BN_to_ASN1_ENUMERATED(BIGNUM *bn, ASN1_ENUMERATED *ai)
 	len=((j == 0)?0:((j/8)+1));
 	if (ret->length < len+4)
 		{
-		char *new_data=(char *)OPENSSL_realloc(ret->data, len+4);
+		unsigned char *new_data=OPENSSL_realloc(ret->data, len+4);
 		if (!new_data)
 			{
 			ASN1err(ASN1_F_BN_TO_ASN1_INTEGER,ERR_R_MALLOC_FAILURE);
diff --git a/crypto/asn1/a_int.c b/crypto/asn1/a_int.c
index 8ae9827f6..edb243c02 100644
--- a/crypto/asn1/a_int.c
+++ b/crypto/asn1/a_int.c
@@ -399,7 +399,7 @@ ASN1_INTEGER *BN_to_ASN1_INTEGER(BIGNUM *bn, ASN1_INTEGER *ai)
 	len=((j == 0)?0:((j/8)+1));
 	if (ret->length < len+4)
 		{
-		char *new_data=(char *)OPENSSL_realloc(ret->data, len+4);
+		unsigned char *new_data=OPENSSL_realloc(ret->data, len+4);
 		if (!new_data)
 			{
 			ASN1err(ASN1_F_BN_TO_ASN1_INTEGER,ERR_R_MALLOC_FAILURE);