diff --git a/src/KingSystem/Physics/Ragdoll/physRagdollController.h b/src/KingSystem/Physics/Ragdoll/physRagdollController.h
index c248e046..d9a4ad93 100644
--- a/src/KingSystem/Physics/Ragdoll/physRagdollController.h
+++ b/src/KingSystem/Physics/Ragdoll/physRagdollController.h
@@ -1,11 +1,17 @@
 #pragma once
 
+#include "KingSystem/Physics/physDefines.h"
+
 namespace ksys::phys {
 
 // TODO
 class RagdollController {
 public:
     void update();
+
+    u32 sub_7101221CC4();
+    void sub_7101221728(ContactLayer layer);
+    void sub_71012217A8();
 };
 
 }  // namespace ksys::phys
diff --git a/src/KingSystem/Physics/System/physInstanceSet.cpp b/src/KingSystem/Physics/System/physInstanceSet.cpp
index 37ca09db..08bb59bc 100644
--- a/src/KingSystem/Physics/System/physInstanceSet.cpp
+++ b/src/KingSystem/Physics/System/physInstanceSet.cpp
@@ -1,4 +1,5 @@
 #include "KingSystem/Physics/System/physInstanceSet.h"
+#include "KingSystem/Physics/Ragdoll/physRagdollController.h"
 #include "KingSystem/Physics/RigidBody/physRigidBodySet.h"
 #include "KingSystem/Physics/System/physCollisionInfo.h"
 #include "KingSystem/Physics/System/physContactPointInfo.h"
diff --git a/src/KingSystem/Physics/System/physInstanceSet.h b/src/KingSystem/Physics/System/physInstanceSet.h
index 5c78088d..2d1680e5 100644
--- a/src/KingSystem/Physics/System/physInstanceSet.h
+++ b/src/KingSystem/Physics/System/physInstanceSet.h
@@ -21,18 +21,10 @@ namespace ksys::phys {
 class CollisionInfo;
 class ContactPointInfo;
 class ParamSet;
+class RagdollController;
 class RigidBodySet;
 class SystemGroupHandler;
 
-class Ragdoll {};
-
-class RagdollController {
-public:
-    u32 sub_7101221CC4();
-    void sub_7101221728(ContactLayer);
-    void sub_71012217A8();
-};
-
 class CollisionController {
 public:
     void sub_7100F5EC30();