diff --git a/src/KingSystem/Physics/CMakeLists.txt b/src/KingSystem/Physics/CMakeLists.txt
index 72dbd059..4307197e 100644
--- a/src/KingSystem/Physics/CMakeLists.txt
+++ b/src/KingSystem/Physics/CMakeLists.txt
@@ -1,6 +1,4 @@
 target_sources(uking PRIVATE
-  physInstanceSet.cpp
-  physInstanceSet.h
   Cloth/physClothParam.cpp
   Cloth/physClothParam.h
   Ragdoll/physRagdollConfig.cpp
@@ -46,6 +44,8 @@ target_sources(uking PRIVATE
   System/physDefines.h
   System/physGroupFilter.cpp
   System/physGroupFilter.h
+  System/physInstanceSet.cpp
+  System/physInstanceSet.h
   System/physMaterialTable.cpp
   System/physMaterialTable.h
   System/physMemSystem.cpp
diff --git a/src/KingSystem/Physics/physInstanceSet.cpp b/src/KingSystem/Physics/System/physInstanceSet.cpp
similarity index 98%
rename from src/KingSystem/Physics/physInstanceSet.cpp
rename to src/KingSystem/Physics/System/physInstanceSet.cpp
index 9699d1ef..bfcb0581 100644
--- a/src/KingSystem/Physics/physInstanceSet.cpp
+++ b/src/KingSystem/Physics/System/physInstanceSet.cpp
@@ -1,4 +1,4 @@
-#include "KingSystem/Physics/physInstanceSet.h"
+#include "KingSystem/Physics/System/physInstanceSet.h"
 
 namespace ksys::phys {
 
diff --git a/src/KingSystem/Physics/physInstanceSet.h b/src/KingSystem/Physics/System/physInstanceSet.h
similarity index 100%
rename from src/KingSystem/Physics/physInstanceSet.h
rename to src/KingSystem/Physics/System/physInstanceSet.h