diff --git a/src/NetscriptFunctions/Corporation.ts b/src/NetscriptFunctions/Corporation.ts
index 67bb16e76..98037706c 100644
--- a/src/NetscriptFunctions/Corporation.ts
+++ b/src/NetscriptFunctions/Corporation.ts
@@ -311,6 +311,9 @@ export function NetscriptCorporation(
       const job = helper.string("assignJob", "job", ajob);
       const employee = getEmployee(divisionName, cityName, employeeName);
       return netscriptDelay(1000, workerScript).then(function () {
+        if (workerScript.env.stopFlag) {
+          return Promise.reject(workerScript);
+        }
         return Promise.resolve(AssignJob(employee, job));
       });
     },
@@ -341,6 +344,9 @@ export function NetscriptCorporation(
         (60 * 1000) / (player.hacking_speed_mult * calculateIntelligenceBonus(player.intelligence, 1)),
         workerScript,
       ).then(function () {
+        if (workerScript.env.stopFlag) {
+          return Promise.reject(workerScript);
+        }
         return Promise.resolve(ThrowParty(corporation, office, costPerEmployee));
       });
     },
@@ -353,6 +359,9 @@ export function NetscriptCorporation(
         (60 * 1000) / (player.hacking_speed_mult * calculateIntelligenceBonus(player.intelligence, 1)),
         workerScript,
       ).then(function () {
+        if (workerScript.env.stopFlag) {
+          return Promise.reject(workerScript);
+        }
         return Promise.resolve(BuyCoffee(corporation, getDivision(divisionName), getOffice(divisionName, cityName)));
       });
     },