diff --git a/Patches/UsablesPatch.cs b/Patches/UsablesPatch.cs
index 806680ed5..0e3227d4c 100644
--- a/Patches/UsablesPatch.cs
+++ b/Patches/UsablesPatch.cs
@@ -38,7 +38,7 @@ public static bool Prefix(Vent __instance, [HarmonyArgument(0)] GameData.PlayerI
 
             // カスタムロールを元にベントを使えるか判定
             // エンジニアベースの役職は常にtrue
-            couldUse = playerControl.CanUseImpostorVentButton() || (pc.Role.Role == RoleTypes.Engineer && !Utils.IsActive(SystemTypes.Comms));
+            couldUse = playerControl.CanUseImpostorVentButton() || (pc.Role.Role == RoleTypes.Engineer && pc.Role.CanUse(__instance.Cast<IUsable>()));
 
             canUse = couldUse;
             // カスタムロールが使えなかったら使用不可