diff --git a/crypto/asn1/tasn_dec.c b/crypto/asn1/tasn_dec.c
index ff2f77b9d..66d229b08 100644
--- a/crypto/asn1/tasn_dec.c
+++ b/crypto/asn1/tasn_dec.c
@@ -93,7 +93,7 @@ static int asn1_d2i_ex_primitive(ASN1_VALUE **pval,
 				int tag, int aclass, char opt, ASN1_TLC *ctx);
 
 /* Table to convert tags to bit values, used for MSTRING type */
-static unsigned long tag2bit[32] = {
+static const unsigned long tag2bit[32] = {
 0,	0,	0,	B_ASN1_BIT_STRING,	/* tags  0 -  3 */
 B_ASN1_OCTET_STRING,	0,	0,		B_ASN1_UNKNOWN,/* tags  4- 7 */
 B_ASN1_UNKNOWN,	B_ASN1_UNKNOWN,	B_ASN1_UNKNOWN,	B_ASN1_UNKNOWN,/* tags  8-11 */