diff --git a/config/dedup.us.yaml b/config/dedup.us.yaml
index 7d12dc72d..fe3454926 100644
--- a/config/dedup.us.yaml
+++ b/config/dedup.us.yaml
@@ -14390,3 +14390,10 @@ groups:
     func: DEFINE_func_80181538
     vram: 0x80181538
     binaries: [ov_SC02_000, ov_SC02_003]
+  - id: E_func_80180190
+    tier: h_exact
+    hash: d5684f9b3608a45c53bc6232cd268e671e1ff0e8
+    source: src/shared/engine_core.h
+    func: DEFINE_func_80180190
+    vram: 0x80180190
+    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 458b98c23..1abdbb772 100644
--- a/src/ov_SC04_018/ov_SC04_018_jr_8017AE2C.c
+++ b/src/ov_SC04_018/ov_SC04_018_jr_8017AE2C.c
@@ -5339,7 +5339,7 @@ extern void func_80178CBC(s32*, s32);
     }
 
 
-INCLUDE_ASM("asm/ov_SC04_018/nonmatchings/ov_SC04_018_jr_8017AE2C", func_80180190);
+DEFINE_func_80180190()  /* dedup: shared engine-core @0x80180190 (src/shared) */
 
 INCLUDE_ASM("asm/ov_SC04_018/nonmatchings/ov_SC04_018_jr_8017AE2C", func_801801E0);
 
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 989c48466..cc50f7ee2 100644
--- a/src/ov_SC04_019/ov_SC04_019_jr_8017AE2C.c
+++ b/src/ov_SC04_019/ov_SC04_019_jr_8017AE2C.c
@@ -5331,19 +5331,7 @@ extern void func_80178CBC(s32 a0, s32 a1);
 
 #include "common.h"
 
-extern int func_80178970(void);
-extern void func_80178D18(void);
-extern void func_80184CB8(s32*, s32);
-
-void func_80180190(void * arg0) {
-
-    extern short D_8019181C;
-    if (func_80178970() != 0) {
-        ((void (*)(s32))func_80178D18)((s32)arg0);
-        *(short *)((char *)arg0 + 0x2) = 1;
-        ((void (*)(s32, s32))func_80184CB8)((int)arg0, (int)&D_8019181C);
-    }
-}
+DEFINE_func_80180190()  /* dedup: shared engine-core @0x80180190 (src/shared) */
 
 
 INCLUDE_ASM("asm/ov_SC04_019/nonmatchings/ov_SC04_019_jr_8017AE2C", func_801801E0);
diff --git a/src/shared/engine_core.h b/src/shared/engine_core.h
index 9c74df876..9ef21f43c 100644
--- a/src/shared/engine_core.h
+++ b/src/shared/engine_core.h
@@ -60039,6 +60039,19 @@
         } \
     }
 
+#define DEFINE_func_80180190() \
+    extern int func_80178970(void); \
+    extern void func_80178D18(void); \
+    extern void func_80184CB8(s32*, s32); \
+    void func_80180190(void * arg0) { \
+        extern short D_8019181C; \
+        if (func_80178970() != 0) { \
+            ((void (*)(s32))func_80178D18)((s32)arg0); \
+            *(short *)((char *)arg0 + 0x2) = 1; \
+            ((void (*)(s32, s32))func_80184CB8)((int)arg0, (int)&D_8019181C); \
+        } \
+    }
+
 #endif
 
 #define DEFINE_func_80128EA8() \
@@ -149483,4 +149496,17 @@
         } \
     }
 
+#define DEFINE_func_80180190() \
+    extern int func_80178970(void); \
+    extern void func_80178D18(void); \
+    extern void func_80184CB8(s32*, s32); \
+    void func_80180190(void * arg0) { \
+        extern short D_8019181C; \
+        if (func_80178970() != 0) { \
+            ((void (*)(s32))func_80178D18)((s32)arg0); \
+            *(short *)((char *)arg0 + 0x2) = 1; \
+            ((void (*)(s32, s32))func_80184CB8)((int)arg0, (int)&D_8019181C); \
+        } \
+    }
+
 #endif