1 files changed, 3 insertions, 0 deletions
diff --git a/crypto/x509/x509_txt.c b/crypto/x509/x509_txt.c
index 6ce8a722cc..63d8d95f3f 100644
--- a/crypto/x509/x509_txt.c
+++ b/crypto/x509/x509_txt.c
@@ -178,6 +178,9 @@ const char *X509_verify_cert_error_string(long n)
         return "subject signature algorithm and issuer public key algorithm mismatch";
     case X509_V_ERR_NO_ISSUER_PUBLIC_KEY:
         return "issuer certificate doesn't have a public key";
+    case X509_V_ERR_UNSUPPORTED_SIGNATURE_ALGORITHM:
+        return "Cannot find certificate signature algorithm";
+
     default:
         /* Printing an error number into a static buffer is not thread-safe */
         return "unknown certificate verification error";