diff --git a/dnc/sparse_temporal_memory.py b/dnc/sparse_temporal_memory.py
index 95383dd..5bef72f 100644
--- a/dnc/sparse_temporal_memory.py
+++ b/dnc/sparse_temporal_memory.py
@@ -8,7 +8,6 @@ import torch.nn.functional as F
 import numpy as np
 import math
 
-from .flann_index import FLANNIndex
 from .util import *
 import time