diff --git a/lib/hdb/db3.c b/lib/hdb/db3.c
index 7d62181c6..db2c4157a 100644
--- a/lib/hdb/db3.c
+++ b/lib/hdb/db3.c
@@ -87,7 +87,6 @@ static krb5_error_code
 DB_seq(krb5_context context, HDB *db,
        unsigned flags, hdb_entry *entry, int flag)
 {
-    DB *d = (DB*)db->db;
     DBT key, value;
     DBC *dbcp = db->dbc;
     krb5_data key_data, data;
@@ -262,10 +261,18 @@ DB_open(krb5_context context, HDB *db, int flags, mode_t mode)
     }
     db_create(&d, NULL, 0);
     db->db = d;
+#if (DB_VERSION_MAJOR > 3) && (DB_VERSION_MINOR > 0)
+    if ((ret = d->open(db->db, NULL, fn, NULL, DB_BTREE, myflags, mode))) {
+#else
     if ((ret = d->open(db->db, fn, NULL, DB_BTREE, myflags, mode))) {
+#endif
       if(ret == ENOENT)
 	/* try to open without .db extension */
+#if (DB_VERSION_MAJOR > 3) && (DB_VERSION_MINOR > 0)
+	if (d->open(db->db, NULL, db->name, NULL, DB_BTREE, myflags, mode)) {
+#else
 	if (d->open(db->db, db->name, NULL, DB_BTREE, myflags, mode)) {
+#endif
 	  free(fn);
 	  krb5_set_error_string(context, "opening %s: %s",
 				db->name, strerror(ret));
diff --git a/lib/roken/ndbm_wrap.c b/lib/roken/ndbm_wrap.c
index 4fec089e4..7c7d6c37a 100644
--- a/lib/roken/ndbm_wrap.c
+++ b/lib/roken/ndbm_wrap.c
@@ -165,7 +165,12 @@ dbm_open (const char *file, int flags, mode_t mode)
 	free(fn);
 	return NULL;
     }
+
+#if (DB_VERSION_MAJOR > 3) && (DB_VERSION_MINOR > 0)
+    if(db->open(db, NULL, fn, NULL, DB_BTREE, myflags, mode) != 0) {
+#else
     if(db->open(db, fn, NULL, DB_BTREE, myflags, mode) != 0) {
+#endif
 	free(fn);
 	db->close(db, 0);
 	return NULL;