diff --git a/README.md b/README.md
index 64a210b..14316f8 100644
--- a/README.md
+++ b/README.md
@@ -158,7 +158,7 @@ CORS=
 WHITELIST=
 
 # HELMET Cross Origin Embedder Policy
-# Sets the Cross-Origin-Embedder-Policy header to require-corp when `true`
+# Sets the Cross-Origin-Embedder-Policy header to require-corp when `true`
 # options: [true|false] default: true
 # Docs: https://helmetjs.github.io/#reference (`crossOriginEmbedderPolicy`)
 HELMET_COEP=
diff --git a/api/src/controllers/internal/Execution.ts b/api/src/controllers/internal/Execution.ts
index afa310e..d5fb25b 100644
--- a/api/src/controllers/internal/Execution.ts
+++ b/api/src/controllers/internal/Execution.ts
@@ -29,6 +29,7 @@ interface ExecuteFileParams {
   session?: Session
   runTime: RunTimeType
   forceStringResult?: boolean
+  isStp?: boolean
 }
 
 interface ExecuteProgramParams extends Omit<ExecuteFileParams, 'programPath'> {
@@ -44,7 +45,8 @@ export class ExecutionController {
     returnJson,
     session,
     runTime,
-    forceStringResult
+    forceStringResult,
+    isStp
   }: ExecuteFileParams) {
     const program = await readFile(programPath)
 
@@ -56,7 +58,8 @@ export class ExecutionController {
       returnJson,
       session,
       runTime,
-      forceStringResult
+      forceStringResult,
+      isStp
     })
   }
 
@@ -67,7 +70,8 @@ export class ExecutionController {
     otherArgs,
     session: sessionByFileUpload,
     runTime,
-    forceStringResult
+    forceStringResult,
+    isStp
   }: ExecuteProgramParams): Promise<ExecuteReturnRaw> {
     const sessionController = getSessionController(runTime)
 
@@ -77,9 +81,7 @@ export class ExecutionController {
     session.consumed = true
 
     const logPath = path.join(session.path, 'log.log')
-    const printOutputPath = path.join(session.path, 'output.lst')
     const headersPath = path.join(session.path, 'stpsrv_header.txt')
-
     const weboutPath = path.join(session.path, 'webout.txt')
     const tokenFile = path.join(session.path, 'reqHeaders.txt')
 
@@ -103,9 +105,6 @@ export class ExecutionController {
     )
 
     const log = (await fileExists(logPath)) ? await readFile(logPath) : ''
-    const printOutput = (await fileExists(printOutputPath))
-      ? await readFile(printOutputPath)
-      : ''
     const headersContent = (await fileExists(headersPath))
       ? await readFile(headersPath)
       : ''
@@ -134,9 +133,16 @@ export class ExecutionController {
     resultParts.push(process.logsUUID)
     resultParts.push(log)
 
-    if (printOutput) {
-      resultParts.push(process.logsUUID)
-      resultParts.push(printOutput)
+    if (!isStp) {
+      const printOutputPath = path.join(session.path, 'output.lst')
+      const printOutput = (await fileExists(printOutputPath))
+        ? await readFile(printOutputPath)
+        : ''
+
+      if (printOutput) {
+        resultParts.push(process.logsUUID)
+        resultParts.push(printOutput)
+      }
     }
 
     return {
diff --git a/api/src/controllers/stp.ts b/api/src/controllers/stp.ts
index b103688..58cfb99 100644
--- a/api/src/controllers/stp.ts
+++ b/api/src/controllers/stp.ts
@@ -3,8 +3,6 @@ import { Request, Security, Route, Tags, Post, Body, Get, Query } from 'tsoa'
 import { ExecutionController, ExecutionVars } from './internal'
 import {
   getPreProgramVariables,
-  HTTPHeaders,
-  LogLine,
   makeFilesNamesMap,
   getRunTimeAndFilePath
 } from '../utils'
@@ -39,7 +37,8 @@ export class STPController {
     @Query() _program: string
   ): Promise<string | Buffer> {
     const vars = request.query as ExecutionVars
-    return execute(request, _program, vars)
+
+    return execute(request, _program, vars, undefined, true)
   }
 
   /**
@@ -67,7 +66,7 @@ export class STPController {
       : null
     const otherArgs = { filesNamesMap: filesNamesMap }
 
-    return execute(request, program!, vars, otherArgs)
+    return execute(request, program!, vars, otherArgs, true)
   }
 }
 
@@ -75,7 +74,8 @@ const execute = async (
   req: express.Request,
   _program: string,
   vars: ExecutionVars,
-  otherArgs?: any
+  otherArgs?: any,
+  isStp?: boolean
 ): Promise<string | Buffer> => {
   try {
     const { codePath, runTime } = await getRunTimeAndFilePath(_program)
@@ -87,7 +87,8 @@ const execute = async (
         preProgramVariables: getPreProgramVariables(req),
         vars,
         otherArgs,
-        session: req.sasjsSession
+        session: req.sasjsSession,
+        isStp
       }
     )