diff --git a/db/c.cc b/db/c.cc
index 55afad94e..4431cd90f 100644
--- a/db/c.cc
+++ b/db/c.cc
@@ -584,22 +584,22 @@ int rocksdb_backup_engine_info_count(const rocksdb_backup_engine_info_t* info) {
   return static_cast<int>(info->rep.size());
 }
 
-const int64_t rocksdb_backup_engine_info_timestamp(
+int64_t rocksdb_backup_engine_info_timestamp(
     const rocksdb_backup_engine_info_t* info, int index) {
   return info->rep[index].timestamp;
 }
 
-const uint32_t rocksdb_backup_engine_info_backup_id(
+uint32_t rocksdb_backup_engine_info_backup_id(
     const rocksdb_backup_engine_info_t* info, int index) {
   return info->rep[index].backup_id;
 }
 
-const uint64_t rocksdb_backup_engine_info_size(
+uint64_t rocksdb_backup_engine_info_size(
     const rocksdb_backup_engine_info_t* info, int index) {
   return info->rep[index].size;
 }
 
-const uint32_t rocksdb_backup_engine_info_number_files(
+uint32_t rocksdb_backup_engine_info_number_files(
     const rocksdb_backup_engine_info_t* info, int index) {
   return info->rep[index].number_files;
 }
diff --git a/db/compaction.h b/db/compaction.h
index 37e38532b..47970c49a 100644
--- a/db/compaction.h
+++ b/db/compaction.h
@@ -92,7 +92,7 @@ class Compaction {
   // input level.
   // REQUIREMENT: "compaction_input_level" must be >= 0 and
   //              < "input_levels()"
-  std::vector<FileMetaData*>* const inputs(size_t compaction_input_level) {
+  std::vector<FileMetaData*>* inputs(size_t compaction_input_level) {
     assert(compaction_input_level < inputs_.size());
     return &inputs_[compaction_input_level].files;
   }
diff --git a/include/rocksdb/c.h b/include/rocksdb/c.h
index ac5f612a0..9b9206824 100644
--- a/include/rocksdb/c.h
+++ b/include/rocksdb/c.h
@@ -135,19 +135,19 @@ extern const rocksdb_backup_engine_info_t* rocksdb_backup_engine_get_backup_info
 extern int rocksdb_backup_engine_info_count(
     const rocksdb_backup_engine_info_t* info);
 
-extern const int64_t rocksdb_backup_engine_info_timestamp(
+extern int64_t rocksdb_backup_engine_info_timestamp(
     const rocksdb_backup_engine_info_t* info,
     int index);
 
-extern const uint32_t rocksdb_backup_engine_info_backup_id(
+extern uint32_t rocksdb_backup_engine_info_backup_id(
     const rocksdb_backup_engine_info_t* info,
     int index);
 
-extern const uint64_t rocksdb_backup_engine_info_size(
+extern uint64_t rocksdb_backup_engine_info_size(
     const rocksdb_backup_engine_info_t* info,
     int index);
 
-extern const uint32_t rocksdb_backup_engine_info_number_files(
+extern uint32_t rocksdb_backup_engine_info_number_files(
     const rocksdb_backup_engine_info_t* info,
     int index);