diff --git a/src/NetscriptFunctions/Corporation.ts b/src/NetscriptFunctions/Corporation.ts
index 05845801c..c961b1482 100644
--- a/src/NetscriptFunctions/Corporation.ts
+++ b/src/NetscriptFunctions/Corporation.ts
@@ -49,6 +49,7 @@ import {
   SetMaterialMarketTA2,
   SetProductMarketTA1,
   SetProductMarketTA2,
+  SetSmartSupplyUseLeftovers,
 } from "../Corporation/Actions";
 import { CorporationUnlockUpgrades } from "../Corporation/data/CorporationUnlockUpgrades";
 import { CorporationUpgrades } from "../Corporation/data/CorporationUpgrades";
@@ -410,6 +411,16 @@ export function NetscriptCorporation(
       const warehouse = getWarehouse(divisionName, cityName);
       SetSmartSupply(warehouse, enabled);
     },
+    setSmartSupplyUseLeftovers: function (adivisionName: any, acityName: any, amaterialName: any, aenabled: any): void {
+      checkAccess("setSmartSupplyUseLeftovers", 7);
+      const divisionName = helper.string("setSmartSupply", "divisionName", adivisionName);
+      const cityName = helper.string("sellProduct", "cityName", acityName);
+      const materialName = helper.string("sellProduct", "materialName", amaterialName);
+      const enabled = helper.boolean(aenabled);
+      const warehouse = getWarehouse(divisionName, cityName);
+      const material = getMaterial(divisionName, cityName, materialName);
+      SetSmartSupplyUseLeftovers(warehouse, material, enabled);
+    },
     buyMaterial: function (adivisionName: any, acityName: any, amaterialName: any, aamt: any): void {
       checkAccess("buyMaterial", 7);
       const divisionName = helper.string("buyMaterial", "divisionName", adivisionName);
diff --git a/src/ScriptEditor/NetscriptDefinitions.d.ts b/src/ScriptEditor/NetscriptDefinitions.d.ts
index 9ea847ceb..7f21575dd 100644
--- a/src/ScriptEditor/NetscriptDefinitions.d.ts
+++ b/src/ScriptEditor/NetscriptDefinitions.d.ts
@@ -6255,6 +6255,14 @@ export interface WarehouseAPI {
    * @param enabled - smart supply enabled
    */
   setSmartSupply(divisionName: string, cityName: string, enabled: boolean): void;
+  /**
+   * Set whether smart supply uses leftovers before buying
+   * @param divisionName - Name of the division
+   * @param cityName - Name of the city
+   * @param materialName - Name of the material
+   * @param enabled - smart supply use leftovers enabled
+   */
+  setSmartSupplyUseLeftovers(divisionName: string, cityName: string, materialName: string, enabled: boolean): void;
   /**
    * Set material buy data
    * @param divisionName - Name of the division