diff --git a/src/KingSystem/Utils/CMakeLists.txt b/src/KingSystem/Utils/CMakeLists.txt
index ba280ccd..591c0361 100644
--- a/src/KingSystem/Utils/CMakeLists.txt
+++ b/src/KingSystem/Utils/CMakeLists.txt
@@ -72,7 +72,6 @@ target_sources(uking PRIVATE
 
   AtomicLongBitFlag.h
   BitField.h
-  BitSet.h
   Debug.h
   FixedString.h
   HashUtil.h