diff --git a/db/memtablerep_bench.cc b/db/memtablerep_bench.cc
index 5bdfa836df7e961823a0d0d2e14470ece12899ec..feb3723eb3900b88a24e578e0f6ae075193babbf 100644
--- a/db/memtablerep_bench.cc
+++ b/db/memtablerep_bench.cc
@@ -132,8 +132,6 @@ DEFINE_int64(seed, 0,
              "Seed base for random number generators. "
              "When 0 it is deterministic.");
 
-static rocksdb::Env* FLAGS_env = rocksdb::Env::Default();
-
 namespace rocksdb {
 
 namespace {