diff --git a/db/memtablerep_bench.cc b/db/memtablerep_bench.cc
index a2a8722269..f4504a606f 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 {