diff --git a/utilities/persistent_cache/block_cache_tier_file.cc b/utilities/persistent_cache/block_cache_tier_file.cc
index 85e0610b7..9e419563a 100644
--- a/utilities/persistent_cache/block_cache_tier_file.cc
+++ b/utilities/persistent_cache/block_cache_tier_file.cc
@@ -62,7 +62,8 @@ Status BlockCacheFile::Delete(uint64_t* size) {
 // <-- 4 --><-- 4  --><-- 4   --><-- 4     --><-- key size  --><-- v-size -->
 //
 struct CacheRecordHeader {
-  CacheRecordHeader() {}
+  CacheRecordHeader()
+    : magic_(0), crc_(0), key_size_(0), val_size_(0) {}
   CacheRecordHeader(const uint32_t magic, const uint32_t key_size,
                     const uint32_t val_size)
       : magic_(magic), crc_(0), key_size_(key_size), val_size_(val_size) {}
diff --git a/utilities/simulator_cache/sim_cache.cc b/utilities/simulator_cache/sim_cache.cc
index e3d801657..020cdaa3c 100644
--- a/utilities/simulator_cache/sim_cache.cc
+++ b/utilities/simulator_cache/sim_cache.cc
@@ -155,7 +155,8 @@ class SimCacheImpl : public SimCache {
       : cache_(cache),
         key_only_cache_(NewLRUCache(sim_capacity, num_shard_bits)),
         miss_times_(0),
-        hit_times_(0) {}
+        hit_times_(0),
+        stats_(nullptr) {}
 
   virtual ~SimCacheImpl() {}
   virtual void SetCapacity(size_t capacity) override {