diff --git a/cache/lru_cache.cc b/cache/lru_cache.cc
index bcdd2c6b8..185f1d870 100644
--- a/cache/lru_cache.cc
+++ b/cache/lru_cache.cc
@@ -103,7 +103,7 @@ void LRUHandleTable::Resize() {
   std::unique_ptr<LRUHandle* []> new_list {
     new LRUHandle* [size_t{1} << new_length_bits] {}
   };
-  uint32_t count = 0;
+  [[maybe_unused]] uint32_t count = 0;
   for (uint32_t i = 0; i < old_length; i++) {
     LRUHandle* h = list_[i];
     while (h != nullptr) {
diff --git a/db/internal_stats.cc b/db/internal_stats.cc
index a49657a73..0fa565ee0 100644
--- a/db/internal_stats.cc
+++ b/db/internal_stats.cc
@@ -658,11 +658,6 @@ void InternalStats::CollectCacheEntryStats(bool foreground) {
                                              min_interval_factor);
 }
 
-std::function<void()> Blah() {
-  static int x = 42;
-  return [&]() { ++x; };
-}
-
 std::function<void(const Slice& key, Cache::ObjectPtr value, size_t charge,
                    const Cache::CacheItemHelper* helper)>
 InternalStats::CacheEntryRoleStats::GetEntryCallback() {
diff --git a/db/version_edit_handler.cc b/db/version_edit_handler.cc
index df537d68a..f7a148968 100644
--- a/db/version_edit_handler.cc
+++ b/db/version_edit_handler.cc
@@ -27,7 +27,7 @@ void VersionEditHandlerBase::Iterate(log::Reader& reader,
   assert(log_read_status);
   assert(log_read_status->ok());
 
-  size_t recovered_edits = 0;
+  [[maybe_unused]] size_t recovered_edits = 0;
   Status s = Initialize();
   while (reader.LastRecordEnd() < max_manifest_read_size_ && s.ok() &&
          reader.ReadRecord(&record, &scratch) && log_read_status->ok()) {