diff --git a/volatility/framework/layers/scanners/wumanber.py b/volatility/framework/layers/scanners/wumanber.py
index 53fc6ea59..cf721b9a2 100644
--- a/volatility/framework/layers/scanners/wumanber.py
+++ b/volatility/framework/layers/scanners/wumanber.py
@@ -5,7 +5,7 @@ class WuManber(object):
         self.minimum_pattern_length = None
 
         self._block_size = block_size
-        self._maximum_hash = (1 << 14)  # This depends on the hash function used
+        self._maximum_hash = self._hash_function([0xff, 0xff, 0xff]) + 1  # This depends on the hash function used
 
         self._patterns = []
         self._shift = None  # This gets generated by preprocess