diff --git a/lib/utils/bloom.js b/lib/utils/bloom.js
index 194f71cc..06c74100 100644
--- a/lib/utils/bloom.js
+++ b/lib/utils/bloom.js
@@ -166,7 +166,7 @@ Bloom.fromRate = function fromRate(items, rate, update) {
   if (update !== -1)
     size = Math.min(size, constants.bloom.MAX_BLOOM_FILTER_SIZE * 8);
 
-  n = (size / items * LN2) | 0;
+  n = ((size / items * LN2) | 0) || 1;
 
   if (update !== -1)
     n = Math.min(n, constants.bloom.MAX_HASH_FUNCS);