diff --git a/memory.py b/memory.py
index c681c9b..5281380 100644
--- a/memory.py
+++ b/memory.py
@@ -3,7 +3,7 @@ import json
 from math import sqrt
 import re
 
-WORD_THRESHOLD = 4
+WORD_LENGTH_THRESHOLD = 4
 
 class RowDecoder(json.JSONDecoder):
     def decode(self, s):
@@ -24,7 +24,7 @@ def index(text):
     words = re.split('\s', text)
     normalized_words = [keepOnlyAlphaChars(word) for word in words]
     important_words = set([w for w in normalized_words
-                             if len(w) >= WORD_THRESHOLD])
+                             if len(w) >= WORD_LENGTH_THRESHOLD])
     return important_words
 
 def insert(db, row):