diff --git a/src/Netscript/NetscriptHelpers.tsx b/src/Netscript/NetscriptHelpers.tsx
index 85d1f77f2..54935596b 100644
--- a/src/Netscript/NetscriptHelpers.tsx
+++ b/src/Netscript/NetscriptHelpers.tsx
@@ -363,8 +363,7 @@ function checkSingularityAccess(ctx: NetscriptContext): void {
   if (!canAccessBitNodeFeature(4)) {
     throw errorMessage(
       ctx,
-      `This singularity function requires Source-File 4 to run. A power up you obtain later in the game.
-      It will be very obvious when and how you can obtain it.`,
+      `This singularity function requires Source-File 4 to run. A power up you obtain later in the game. It will be very obvious when and how you can obtain it.`,
       "API ACCESS",
     );
   }
@@ -381,10 +380,8 @@ function checkEnvFlags(ctx: NetscriptContext): void {
     log(ctx, () => "Failed to run due to failed concurrency check.");
     const err = errorMessage(
       ctx,
-      `Concurrent calls to Netscript functions are not allowed!
-      Did you forget to await hack(), grow(), or some other
-      promise-returning function?
-      Currently running: ${ws.env.runningFn} tried to run: ${ctx.function}`,
+      "Concurrent calls to Netscript functions are not allowed! Did you forget to await hack(), grow(), or some other " +
+        `promise-returning function?\nCurrently running: ${ws.env.runningFn}\nTried to run: ${ctx.function}`,
       "CONCURRENCY",
     );
     killWorkerScript(ws);
diff --git a/src/UncaughtPromiseHandler.ts b/src/UncaughtPromiseHandler.ts
index 1ace614f9..3ac3cc159 100644
--- a/src/UncaughtPromiseHandler.ts
+++ b/src/UncaughtPromiseHandler.ts
@@ -3,10 +3,6 @@ import { handleUnknownError } from "./utils/ErrorHandler";
 export function setupUncaughtPromiseHandler(): void {
   window.addEventListener("unhandledrejection", (e) => {
     e.preventDefault();
-    handleUnknownError(
-      e.reason,
-      null,
-      "UNCAUGHT PROMISE ERROR\nYou forgot to await a promise\nmaybe hack / grow / weaken ?\n\n",
-    );
+    handleUnknownError(e.reason, null, "UNCAUGHT PROMISE ERROR. Caused by:\n\n");
   });
 }