diff --git a/include/rocksdb/options.h b/include/rocksdb/options.h
index 321e4f8e4..7a58c1c09 100644
--- a/include/rocksdb/options.h
+++ b/include/rocksdb/options.h
@@ -1865,7 +1865,7 @@ struct CompactRangeOptions {
   uint32_t max_subcompactions = 0;
   // Set user-defined timestamp low bound, the data with older timestamp than
   // low bound maybe GCed by compaction. Default: nullptr
-  Slice* full_history_ts_low = nullptr;
+  const Slice* full_history_ts_low = nullptr;
 
   // Allows cancellation of an in-progress manual compaction.
   //