From 048f342e1d014b325f61d1c29eb67c881366ab7f Mon Sep 17 00:00:00 2001
From: Paul Hauner <paul@paulhauner.com>
Date: Mon, 20 May 2019 16:46:44 +1000
Subject: [PATCH] Fix off-by-one error in `CommitteeCache`

---
 eth2/types/src/beacon_state/committee_cache.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/eth2/types/src/beacon_state/committee_cache.rs b/eth2/types/src/beacon_state/committee_cache.rs
index 1667e3c7e..afefaa6ba 100644
--- a/eth2/types/src/beacon_state/committee_cache.rs
+++ b/eth2/types/src/beacon_state/committee_cache.rs
@@ -76,7 +76,7 @@ impl CommitteeCache {
         .ok_or_else(|| Error::UnableToShuffle)?;
 
         // The use of `NonZeroUsize` reduces the maximum number of possible validators by one.
-        if state.validator_registry.len() >= usize::max_value() - 1 {
+        if state.validator_registry.len() > usize::max_value() - 1 {
             return Err(Error::TooManyValidators);
         }