1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/libcrypto/asn1/x_pubkey.c b/src/lib/libcrypto/asn1/x_pubkey.c
index b2e2a51477..4397a404b5 100644
--- a/src/lib/libcrypto/asn1/x_pubkey.c
+++ b/src/lib/libcrypto/asn1/x_pubkey.c
@@ -234,7 +234,7 @@ EVP_PKEY *X509_PUBKEY_get(X509_PUBKEY *key)
         a=key->algor;
         if (ret->type == EVP_PKEY_DSA)
                 {
-                if (a->parameter->type == V_ASN1_SEQUENCE)
+                if (a->parameter && (a->parameter->type == V_ASN1_SEQUENCE))
                         {
                         ret->pkey.dsa->write_params=0;
                         p=a->parameter->value.sequence->data;