diff --git a/source/module/actors/M5ModAggregate.ts b/source/module/actors/M5ModAggregate.ts
index ff59ce4..c84fa37 100644
--- a/source/module/actors/M5ModAggregate.ts
+++ b/source/module/actors/M5ModAggregate.ts
@@ -144,7 +144,7 @@ export default class M5ModAggregate {
 			mods = arr.filter((pair) => pair.mod.operation === M5ModOperation.DIVISION);
 			if (mods.length !== 0) {
 				ret.mods = ret.mods.concat(mods.map(this.pairAsSource));
-				const bonus = mods.map((p) => p.mod.value).reduce((a, b) => a / b, 0);
+				const bonus = mods.map((p) => p.mod.value).reduce((a, b) => Math.floor(a / b), 0);
 				ret.value = Math.max(0, ret.value + bonus);
 			}
 		}