diff --git a/config/dedup.us.yaml b/config/dedup.us.yaml
index 6ed421c55f..67b014e546 100644
--- a/config/dedup.us.yaml
+++ b/config/dedup.us.yaml
@@ -14495,3 +14495,10 @@ groups:
     func: DEFINE_func_801817FC
     vram: 0x801817FC
     binaries: [ov_SC03_118, ov_SC03_119]
+  - id: E_func_80188074
+    tier: h_exact
+    hash: fc13d13ecddfeb1eed051fde523b8915549892d2
+    source: src/shared/engine_core.h
+    func: DEFINE_func_80188074
+    vram: 0x80188074
+    binaries: [ov_SC03_118, ov_SC03_119]
diff --git a/src/ov_SC03_118/ov_SC03_118_jr_801863CC.c b/src/ov_SC03_118/ov_SC03_118_jr_801863CC.c
index a8022351f6..0066968630 100644
--- a/src/ov_SC03_118/ov_SC03_118_jr_801863CC.c
+++ b/src/ov_SC03_118/ov_SC03_118_jr_801863CC.c
@@ -3958,17 +3958,7 @@ void func_80187F2C(s32 a0)
 
 INCLUDE_ASM("asm/ov_SC03_118/nonmatchings/ov_SC03_118_jr_801863CC", func_8018800C);
 
-extern s32 func_8012BCCC(s32 a0);
-
-void func_80188074(s32 a0) {
-    s16 v = *(s16 *)(a0 + 0xFC);
-
-    if (v != 0) {
-        *(s16 *)(a0 + 0xFC) = v - 1;
-    } else if (func_8012BCCC(a0) <= 0xFFFFF) {
-        *(s16 *)(a0 + 0x2) = 0x9;
-    }
-}
+DEFINE_func_80188074()  /* dedup: shared engine-core @0x80188074 (src/shared) */
 
 
 INCLUDE_ASM("asm/ov_SC03_118/nonmatchings/ov_SC03_118_jr_801863CC", func_801880D4);
diff --git a/src/ov_SC03_119/ov_SC03_119_jr_801863CC.c b/src/ov_SC03_119/ov_SC03_119_jr_801863CC.c
index 1c78344c73..810c74c1da 100644
--- a/src/ov_SC03_119/ov_SC03_119_jr_801863CC.c
+++ b/src/ov_SC03_119/ov_SC03_119_jr_801863CC.c
@@ -3883,15 +3883,7 @@ void func_80187F2C(s32 a0)
 
 INCLUDE_ASM("asm/ov_SC03_119/nonmatchings/ov_SC03_119_jr_801863CC", func_8018800C);
 
-    extern s32 func_8012BCCC(s32 a0);
-    void func_80188074(s32 a0) {
-        s16 v = *(s16 *)(a0 + 0xFC);
-        if (v != 0) {
-            *(s16 *)(a0 + 0xFC) = v - 1;
-        } else if (func_8012BCCC(a0) <= 0xFFFFF) {
-            *(s16 *)(a0 + 0x2) = 0x9;
-        }
-    }
+DEFINE_func_80188074()  /* dedup: shared engine-core @0x80188074 (src/shared) */
 
 
 INCLUDE_ASM("asm/ov_SC03_119/nonmatchings/ov_SC03_119_jr_801863CC", func_801880D4);