diff --git a/table/block.cc b/table/block.cc
index 372bbd2f0b5..dc702b80c8b 100644
--- a/table/block.cc
+++ b/table/block.cc
@@ -402,6 +402,7 @@ Block::Block(BlockContents&& contents, SequenceNumber _global_seqno,
     : contents_(std::move(contents)),
       data_(contents_.data.data()),
       size_(contents_.data.size()),
+      restart_offset_(0),
       global_seqno_(_global_seqno) {
   if (size_ < sizeof(uint32_t)) {
     size_ = 0;  // Error marker
diff --git a/table/block_based_table_builder.cc b/table/block_based_table_builder.cc
index c8815d378f4..dec0dce2df8 100644
--- a/table/block_based_table_builder.cc
+++ b/table/block_based_table_builder.cc
@@ -301,6 +301,7 @@ struct BlockBasedTableBuilder::Rep {
         compression_type(_compression_type),
         compression_opts(_compression_opts),
         compression_dict(_compression_dict),
+        compressed_cache_key_prefix_size(0),
         flush_block_policy(
             table_options.flush_block_policy_factory->NewFlushBlockPolicy(
                 table_options, data_block)),
diff --git a/table/block_based_table_reader.h b/table/block_based_table_reader.h
index a5426cdedf7..8be8551e76e 100644
--- a/table/block_based_table_reader.h
+++ b/table/block_based_table_reader.h
@@ -407,6 +407,8 @@ struct BlockBasedTable::Rep {
         filter_policy(skip_filters ? nullptr : _table_opt.filter_policy.get()),
         internal_comparator(_internal_comparator),
         filter_type(FilterType::kNoFilter),
+        index_type(BlockBasedTableOptions::IndexType::kBinarySearch),
+        hash_index_allow_collision(false),
         whole_key_filtering(_table_opt.whole_key_filtering),
         prefix_filtering(true),
         range_del_handle(BlockHandle::NullBlockHandle()),
diff --git a/table/cuckoo_table_reader.cc b/table/cuckoo_table_reader.cc
index 9cecebaebb7..937f598d103 100644
--- a/table/cuckoo_table_reader.cc
+++ b/table/cuckoo_table_reader.cc
@@ -38,6 +38,18 @@ CuckooTableReader::CuckooTableReader(
     const Comparator* comparator,
     uint64_t (*get_slice_hash)(const Slice&, uint32_t, uint64_t))
     : file_(std::move(file)),
+      is_last_level_(false),
+      identity_as_first_hash_(false),
+      use_module_hash_(false),
+      num_hash_func_(0),
+      unused_key_(""),
+      key_length_(0),
+      user_key_length_(0),
+      value_length_(0),
+      bucket_length_(0),
+      cuckoo_block_size_(0),
+      cuckoo_block_bytes_minus_one_(0),
+      table_size_(0),
       ucomp_(comparator),
       get_slice_hash_(get_slice_hash) {
   if (!ioptions.allow_mmap_reads) {
diff --git a/table/plain_table_index.h b/table/plain_table_index.h
index 2916be4192b..f4adf025839 100644
--- a/table/plain_table_index.h
+++ b/table/plain_table_index.h
@@ -123,6 +123,8 @@ class PlainTableIndexBuilder {
         num_keys_per_prefix_(0),
         prev_key_prefix_hash_(0),
         index_sparseness_(index_sparseness),
+        index_size_(0),
+        sub_index_size_(0),
         prefix_extractor_(ioptions.prefix_extractor),
         hash_table_ratio_(hash_table_ratio),
         huge_page_tlb_size_(huge_page_tlb_size) {}