diff --git a/HISTORY.md b/HISTORY.md
index 90bee1e14..b4be99df8 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -21,7 +21,7 @@
 * Introduce WriteOptions.low_pri. If it is true, low priority writes will be throttled if the compaction is behind.
 * `DB::IngestExternalFile()` now supports ingesting files into a database containing range deletions.
 
-### Bu Fixes
+### Bug Fixes
 * Shouldn't ignore return value of fsync() in flush.
 
 ## 5.5.0 (05/17/2017)