diff --git a/utilities/persistent_cache/block_cache_tier_file.cc b/utilities/persistent_cache/block_cache_tier_file.cc
index 970da8f184..ef77252583 100644
--- a/utilities/persistent_cache/block_cache_tier_file.cc
+++ b/utilities/persistent_cache/block_cache_tier_file.cc
@@ -38,7 +38,7 @@ Status NewRandomAccessCacheFile(Env* const env, const std::string& filepath,
 //
 // BlockCacheFile
 //
-Status BlockCacheFile::Delete(size_t* size) {
+Status BlockCacheFile::Delete(uint64_t* size) {
   Status status = env_->GetFileSize(Path(), size);
   if (!status.ok()) {
     return status;
diff --git a/utilities/persistent_cache/block_cache_tier_file.h b/utilities/persistent_cache/block_cache_tier_file.h
index 8dbd60a1e9..da8a4b5cdc 100644
--- a/utilities/persistent_cache/block_cache_tier_file.h
+++ b/utilities/persistent_cache/block_cache_tier_file.h
@@ -126,7 +126,7 @@ class BlockCacheFile : public LRUElement<BlockCacheFile> {
   // get block information
   std::list<BlockInfo*>& block_infos() { return block_infos_; }
   // delete file and return the size of the file
-  virtual Status Delete(size_t* size);
+  virtual Status Delete(uint64_t* size);
 
  protected:
   port::RWMutex rwlock_;               // synchronization mutex
diff --git a/utilities/simulator_cache/sim_cache.cc b/utilities/simulator_cache/sim_cache.cc
index e88043d9d2..3fe0aaf9c1 100644
--- a/utilities/simulator_cache/sim_cache.cc
+++ b/utilities/simulator_cache/sim_cache.cc
@@ -133,8 +133,13 @@ class SimCacheImpl : public SimCache {
                "\n");
     res.append("SimCache HITs:    " + std::to_string(get_hit_counter()) + "\n");
     char buff[100];
+#ifdef OS_WIN
+    _snprintf(buff, sizeof(buff), "SimCache HITRATE: %.2f%%\n",
+              get_hit_rate() * 100);
+#else
     snprintf(buff, sizeof(buff), "SimCache HITRATE: %.2f%%\n",
              get_hit_rate() * 100);
+#endif
     res.append(buff);
     return res;
   }