diff --git a/config/dedup.us.yaml b/config/dedup.us.yaml
index 09c0f65c7..fd36b744a 100644
--- a/config/dedup.us.yaml
+++ b/config/dedup.us.yaml
@@ -14544,3 +14544,10 @@ groups:
     func: DEFINE_func_8017CE0C
     vram: 0x8017CE0C
     binaries: [ov_SC03_006, ov_SC02_016, ov_SC02_017, ov_SC03_029]
+  - id: E_func_8017CF5C
+    tier: h_exact
+    hash: 37f67f3adb2e4e2b3392abbf4d460a287e3a0242
+    source: src/shared/engine_core.h
+    func: DEFINE_func_8017CF5C
+    vram: 0x8017CF5C
+    binaries: [ov_SC01_008, ov_SC06_006]
diff --git a/src/ov_SC01_008/ov_SC01_008_jr_8017BE9C.c b/src/ov_SC01_008/ov_SC01_008_jr_8017BE9C.c
index d87ebedbd..311d5a4b2 100644
--- a/src/ov_SC01_008/ov_SC01_008_jr_8017BE9C.c
+++ b/src/ov_SC01_008/ov_SC01_008_jr_8017BE9C.c
@@ -3249,10 +3249,7 @@ s32 func_8017CEE0(u8 *a0) {
 }
 
 
-extern void func_800D1EBC(void);
-    void func_8017CF5C(void) {
-        func_800D1EBC();
-    }
+DEFINE_func_8017CF5C()  /* dedup: shared engine-core @0x8017CF5C (src/shared) */
 
 
 
diff --git a/src/ov_SC06_006/ov_SC06_006_jr_8017BEBC.c b/src/ov_SC06_006/ov_SC06_006_jr_8017BEBC.c
index 0371b8d03..f8761a502 100644
--- a/src/ov_SC06_006/ov_SC06_006_jr_8017BEBC.c
+++ b/src/ov_SC06_006/ov_SC06_006_jr_8017BEBC.c
@@ -3225,10 +3225,7 @@ s32 func_8017CEE0(u8 *a0) {
 }
 
 
-extern void func_800D1EBC(void);
-void func_8017CF5C(void) {
-    func_800D1EBC();
-}
+DEFINE_func_8017CF5C()  /* dedup: shared engine-core @0x8017CF5C (src/shared) */
 
 
 
diff --git a/src/shared/engine_core.h b/src/shared/engine_core.h
index 964559f6e..d28be9c49 100644
--- a/src/shared/engine_core.h
+++ b/src/shared/engine_core.h
@@ -60355,6 +60355,12 @@
         } \
     }
 
+#define DEFINE_func_8017CF5C() \
+    extern void func_800D1EBC(void); \
+        void func_8017CF5C(void) { \
+            func_800D1EBC(); \
+        }
+
 #endif
 
 #define DEFINE_func_80128EA8() \
@@ -150115,4 +150121,10 @@
         } \
     }
 
+#define DEFINE_func_8017CF5C() \
+    extern void func_800D1EBC(void); \
+        void func_8017CF5C(void) { \
+            func_800D1EBC(); \
+        }
+
 #endif