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Diffstat (limited to 'ext/openssl/ossl_x509attr.c')
-rw-r--r--ext/openssl/ossl_x509attr.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/ext/openssl/ossl_x509attr.c b/ext/openssl/ossl_x509attr.c
index 3309a070b4..572215d607 100644
--- a/ext/openssl/ossl_x509attr.c
+++ b/ext/openssl/ossl_x509attr.c
@@ -94,6 +94,7 @@ ossl_x509attr_initialize(int argc, VALUE *argv, VALUE self)
if(rb_scan_args(argc, argv, "11", &oid, &value) == 1){
GetX509Attr(self, attr);
oid = ossl_to_der_if_possible(oid);
+ StringValue(oid);
p = RSTRING(oid)->ptr;
if(!d2i_X509_ATTRIBUTE(&attr, &p, RSTRING(oid)->len)){
ossl_raise(eX509AttrError, NULL);