1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/libcrypto/asn1/a_octet.c b/src/lib/libcrypto/asn1/a_octet.c
index 9690bae0f1..24fd0f8e5a 100644
--- a/src/lib/libcrypto/asn1/a_octet.c
+++ b/src/lib/libcrypto/asn1/a_octet.c
@@ -66,6 +66,6 @@ ASN1_OCTET_STRING *ASN1_OCTET_STRING_dup(ASN1_OCTET_STRING *x)
 int ASN1_OCTET_STRING_cmp(ASN1_OCTET_STRING *a, ASN1_OCTET_STRING *b)
 { return M_ASN1_OCTET_STRING_cmp(a, b); }
 
-int ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *x, unsigned char *d, int len)
+int ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *x, const unsigned char *d, int len)
 { return M_ASN1_OCTET_STRING_set(x, d, len); }