diff --git a/cassandra/murmur3.py b/cassandra/murmur3.py
index c1d5ab32..7c8d641b 100644
--- a/cassandra/murmur3.py
+++ b/cassandra/murmur3.py
@@ -7,6 +7,8 @@ def body_and_tail(data):
     nblocks = l // 16
     tail = l % 16
     if nblocks:
+        # we use '<', specifying little-endian byte order for data bigger than
+        # a byte so behavior is the same on little- and big-endian platforms
         return struct.unpack_from('<' + ('qq' * nblocks), data), struct.unpack_from('b' * tail, data, -tail), l
     else:
         return tuple(), struct.unpack_from('b' * tail, data, -tail), l