diff --git a/beacon-chain/cache/committee.go b/beacon-chain/cache/committee.go
index badce0560a61..671b65af7313 100644
--- a/beacon-chain/cache/committee.go
+++ b/beacon-chain/cache/committee.go
@@ -129,7 +129,7 @@ func (c *CommitteeCache) ActiveIndices(seed [32]byte) ([]uint64, error) {
 }
 
 // ActiveIndicesCount returns the active indices count of a given seed stored in cache.
-func (c *CommitteeCache) ActiveIndicesCount(seed [32]byte) (int, error) {
+func (c *CommitteeCache) ActiveIndicesCount(seed [32]byte) (uint64, error) {
 	c.lock.RLock()
 	defer c.lock.RUnlock()
 	obj, exists, err := c.CommitteeCache.GetByKey(key(seed))
@@ -149,7 +149,7 @@ func (c *CommitteeCache) ActiveIndicesCount(seed [32]byte) (int, error) {
 		return 0, ErrNotCommittee
 	}
 
-	return len(item.SortedIndices), nil
+	return uint64(len(item.SortedIndices)), nil
 }
 
 // HasEntry returns true if the committee cache has a value.
diff --git a/beacon-chain/core/helpers/validators.go b/beacon-chain/core/helpers/validators.go
index 9d381d8aa776..69a49afa582e 100644
--- a/beacon-chain/core/helpers/validators.go
+++ b/beacon-chain/core/helpers/validators.go
@@ -111,7 +111,7 @@ func ActiveValidatorCount(state *stateTrie.BeaconState, epoch uint64) (uint64, e
 		return 0, errors.Wrap(err, "could not interface with committee cache")
 	}
 	if activeCount != 0 && state.Slot() != 0 {
-		return uint64(activeCount), nil
+		return activeCount, nil
 	}
 
 	count := uint64(0)