diff --git a/src/pkcs15init/pkcs15-iasecc.c b/src/pkcs15init/pkcs15-iasecc.c
index d04340cb..2fff9ab8 100644
--- a/src/pkcs15init/pkcs15-iasecc.c
+++ b/src/pkcs15init/pkcs15-iasecc.c
@@ -1485,8 +1485,11 @@ iasecc_md_gemalto_unset_default(struct sc_pkcs15_card *p15card, struct sc_profil
 	rv = sc_pkcs15_read_data_object(p15card, (struct sc_pkcs15_data_info *)data_obj->data, &dod);
 	LOG_TEST_RET(ctx, rv, "Cannot read from 'CSP/'Default Key Container'");
 
-	if (guid_len != dod->data_len || memcmp(guid, dod->data, guid_len))
+	if (guid_len != dod->data_len || memcmp(guid, dod->data, guid_len)) {
+		sc_pkcs15_free_data_object(dod);
 		LOG_FUNC_RETURN(ctx, SC_SUCCESS);
+	}
+	sc_pkcs15_free_data_object(dod);
 
 	rv = sc_pkcs15_get_objects(p15card, SC_PKCS15_TYPE_PRKEY, key_objs, 32);
 	LOG_TEST_RET(ctx, rv, "Get private key PKCS#15 objects error");