1 files changed, 4 insertions, 0 deletions
diff --git a/bucket.go b/bucket.go
index 6e7b791..d0b2ac2 100644
--- a/bucket.go
+++ b/bucket.go
@@ -1,5 +1,9 @@
 package bolt
 
+const (
+	MDB_DUPSORT = 0x04
+)
+
 // TODO: #define MDB_VALID	0x8000		/**< DB handle is valid, for me_dbflags */
 // TODO: #define PERSISTENT_FLAGS	(0xffff & ~(MDB_VALID))
 // TODO: #define VALID_FLAGS	(MDB_REVERSEKEY|MDB_DUPSORT|MDB_INTEGERKEY|MDB_DUPFIXED|MDB_INTEGERDUP|MDB_REVERSEDUP|MDB_CREATE)