diff --git a/scripts/genproto.sh b/scripts/genproto.sh
index 03392c60f..a4400aca8 100755
--- a/scripts/genproto.sh
+++ b/scripts/genproto.sh
@@ -34,7 +34,7 @@ echo "  - grpc-gateway-root:       ${GRPC_GATEWAY_ROOT}"
 GOGOPROTO_PATH="${GOGOPROTO_ROOT}:${GOGOPROTO_ROOT}/protobuf"
 
 # directories containing protos to be built
-DIRS="./server/wal/walpb ./api/etcdserverpb ./server/etcdserver/api/snap/snappb ./raft/raftpb ./api/mvccpb ./server/lease/leasepb ./api/authpb ./server/etcdserver/api/v3lock/v3lockpb ./server/etcdserver/api/v3election/v3electionpb ./api/membershippb ./tests/functional ./api/versionpb"
+DIRS="./server/storage/wal/walpb ./api/etcdserverpb ./server/etcdserver/api/snap/snappb ./raft/raftpb ./api/mvccpb ./server/lease/leasepb ./api/authpb ./server/etcdserver/api/v3lock/v3lockpb ./server/etcdserver/api/v3election/v3electionpb ./api/membershippb ./tests/functional ./api/versionpb"
 
 log_callout -e "\\nRunning gofast (gogo) proto generation..."
 
diff --git a/server/storage/mvcc/key_index.go b/server/storage/mvcc/key_index.go
index 58ad4832e..61a13b989 100644
--- a/server/storage/mvcc/key_index.go
+++ b/server/storage/mvcc/key_index.go
@@ -133,7 +133,7 @@ func (ki *keyIndex) tombstone(lg *zap.Logger, main int64, sub int64) error {
 }
 
 // get gets the modified, created revision and version of the key that satisfies the given atRev.
-// Rev must be higher than or equal to the given atRev.
+// Rev must be smaller than or equal to the given atRev.
 func (ki *keyIndex) get(lg *zap.Logger, atRev int64) (modified, created revision, ver int64, err error) {
 	if ki.isEmpty() {
 		lg.Panic(