diff --git a/libraries/liblmdb/mdb.c b/libraries/liblmdb/mdb.c
index 73ebc910e0..75bcaad837 100644
--- a/libraries/liblmdb/mdb.c
+++ b/libraries/liblmdb/mdb.c
@@ -4885,7 +4885,7 @@ mdb_env_write_meta(MDB_txn *txn)
 				goto fail;
 			}
 #if defined(__APPLE__)
-			if (MDB_FDATASYNC(env->me_mfd)) {
+			if (MDB_FDATASYNC(env->me_fd)) {
 				rc = ErrCode();
 				goto fail;
 			}