diff --git a/include/rocksdb/options.h b/include/rocksdb/options.h
index 8b5fb2f93..a554fc737 100644
--- a/include/rocksdb/options.h
+++ b/include/rocksdb/options.h
@@ -768,7 +768,7 @@ struct DBOptions {
   // Allow the OS to mmap file for reading sst tables.
   // Not recommended for 32-bit OS.
   // When the option is set to true and compression is disabled, the blocks
-  // will not be copied and will be read directly from the mmaped memory
+  // will not be copied and will be read directly from the mmap-ed memory
   // area, and the block will not be inserted into the block cache. However,
   // checksums will still be checked if ReadOptions.verify_checksums is set
   // to be true. It means a checksum check every time a block is read, more