diff --git a/include/ac_boxTrick01.h b/include/ac_boxTrick01.h
index 8890f86b..99479d38 100644
--- a/include/ac_boxTrick01.h
+++ b/include/ac_boxTrick01.h
@@ -8,12 +8,19 @@
 extern "C" {
 #endif
 
+// sizeof(BoxTrick01_data_c) == 0x8
+typedef struct box_trick_data_s {
+    /* 0x0 */ u8 block_x;
+    /* 0x1 */ u8 block_z;
+    /* 0x4 */ void* data;
+} BoxTrick01_data_c;
+
 typedef struct box_trick01_s{
     ACTOR actor_class;
-    u8 pad[0x17C - 0x174];
+    int block_x;
+    int block_z;
 }BOXTRICK01_ACTOR;
 
-
 extern ACTOR_PROFILE BoxTrick01_Profile;
 
 
diff --git a/include/m_clip.h b/include/m_clip.h
index 720f09dd..1b2e3149 100644
--- a/include/m_clip.h
+++ b/include/m_clip.h
@@ -28,6 +28,7 @@
 #include "ac_effectbg.h"
 #include "ac_htable.h"
 #include "ac_sign.h"
+#include "ac_boxTrick01.h"
 
 #ifdef __cplusplus
 extern "C" {
@@ -37,7 +38,7 @@ typedef void (*CLIP_NONE_PROC)();
 
 /* sizeof(Clip_c) == 0x104 */
 typedef struct clip_s {
-    /* 0x000 */ void* _000[(0x020 - 0x000) / sizeof(void*)];
+    /* 0x000 */ BoxTrick01_data_c box_trick_data[4];
     /* 0x020 */ int arrange_ftr_num;
     /* 0x024 */ void* _024;
     /* 0x028 */ void* misin_clip;