diff --git a/config/dedup.us.yaml b/config/dedup.us.yaml
index f2dc042bbc..fb2a3b165e 100644
--- a/config/dedup.us.yaml
+++ b/config/dedup.us.yaml
@@ -15202,3 +15202,10 @@ groups:
     func: DEFINE_func_8017D484
     vram: 0x8017D484
     binaries: [ov_SC02_039, ov_SC03_108]
+  - id: E_func_8017E024
+    tier: h_exact
+    hash: f5893a74f07ac34746b774be2c5f84c896365ee2
+    source: src/shared/engine_core.h
+    func: DEFINE_func_8017E024
+    vram: 0x8017E024
+    binaries: [ov_SC04_018, ov_SC04_019]
diff --git a/src/ov_SC04_018/ov_SC04_018_jr_8017AE2C.c b/src/ov_SC04_018/ov_SC04_018_jr_8017AE2C.c
index 7a67eddb04..f2a14d30a8 100644
--- a/src/ov_SC04_018/ov_SC04_018_jr_8017AE2C.c
+++ b/src/ov_SC04_018/ov_SC04_018_jr_8017AE2C.c
@@ -4537,11 +4537,7 @@ void func_8017DFE8(void *a0) {
 
 
 
-extern s32 D_80127050;
-
-void func_8017E024(void) {
-    D_80127050 = 1;
-}
+DEFINE_func_8017E024()  /* dedup: shared engine-core @0x8017E024 (src/shared) */
 
 
 
diff --git a/src/ov_SC04_019/ov_SC04_019_jr_8017AE2C.c b/src/ov_SC04_019/ov_SC04_019_jr_8017AE2C.c
index 5fe18d649d..82528bcb9c 100644
--- a/src/ov_SC04_019/ov_SC04_019_jr_8017AE2C.c
+++ b/src/ov_SC04_019/ov_SC04_019_jr_8017AE2C.c
@@ -4529,10 +4529,7 @@ void func_8017DFE8(void *a0) {
 }
 
 
-extern s32 D_80127050;
-    void func_8017E024(void) {
-        D_80127050 = 1;
-    }
+DEFINE_func_8017E024()  /* dedup: shared engine-core @0x8017E024 (src/shared) */
 
 
 
diff --git a/src/shared/engine_core.h b/src/shared/engine_core.h
index 131c82c7c3..c0f888f71d 100644
--- a/src/shared/engine_core.h
+++ b/src/shared/engine_core.h
@@ -65766,6 +65766,12 @@
         } \
     }
 
+#define DEFINE_func_8017E024() \
+    extern s32 D_80127050; \
+    void func_8017E024(void) { \
+        D_80127050 = 1; \
+    }
+
 #endif
 
 #define DEFINE_func_80128EA8() \
@@ -160937,4 +160943,10 @@
         } \
     }
 
+#define DEFINE_func_8017E024() \
+    extern s32 D_80127050; \
+    void func_8017E024(void) { \
+        D_80127050 = 1; \
+    }
+
 #endif