diff --git a/src/ov_SC01_077/ov_SC01_077_a.c b/src/ov_SC01_077/ov_SC01_077_a.c
index aa7300813..ad2e72296 100644
--- a/src/ov_SC01_077/ov_SC01_077_a.c
+++ b/src/ov_SC01_077/ov_SC01_077_a.c
@@ -524,23 +524,7 @@ DEFINE_func_8012944C()  /* dedup: shared engine-core @0x8012944C (src/shared) */
 
 #include "common.h"
 
-typedef struct { s32 a, b, c, d; } Blk16_956C;
 
-typedef struct {
-    u8 pad0[0x1C];
-    s16 f1C;
-    s16 f1E;
-    u8 pad20[0x14];
-    u16 f34;
-    u16 f36;
-    u16 f38;
-    u16 f3A;
-    u8 pad3C[2];
-    s16 f3E;
-    u16 f40;
-    u16 f42;
-    u8 pad44[0x10];
-} Ent_956C;
 
 extern s32 D_801D9484;
 
diff --git a/src/shared/engine_types.h b/src/shared/engine_types.h
index 03992bd99..0ce7dcff9 100644
--- a/src/shared/engine_types.h
+++ b/src/shared/engine_types.h
@@ -606,3 +606,22 @@ typedef struct EntSC01077 {
 typedef struct { u32 addr : 24; u32 len : 8; u8 r0, g0, b0, code; } P_TAG_80137DD4;
 
 #endif /* BFM_ENGINE_TYPES_H */
+
+/* Phase-29 crack-wave lift (func_8012956C family) */
+typedef struct { s32 a, b, c, d; } Blk16_956C;
+typedef struct {
+    u8 pad0[0x1C];
+    s16 f1C;
+    s16 f1E;
+    u8 pad20[0x14];
+    u16 f34;
+    u16 f36;
+    u16 f38;
+    u16 f3A;
+    u8 pad3C[2];
+    s16 f3E;
+    u16 f40;
+    u16 f42;
+    u8 pad44[0x10];
+} Ent_956C;
+