diff --git a/analytics/classes/model_config.php b/analytics/classes/model_config.php
index 75b31f1128b..67218507d9d 100644
--- a/analytics/classes/model_config.php
+++ b/analytics/classes/model_config.php
@@ -77,7 +77,7 @@ class model_config {
         // Model config in JSON.
         $modeldata = $this->export_model_data();
 
-        $exporttmpdir = make_request_directory('analyticsexport');
+        $exporttmpdir = make_request_directory();
         $jsonfilepath = $exporttmpdir . DIRECTORY_SEPARATOR . 'model-config.json';
         if (!file_put_contents($jsonfilepath, json_encode($modeldata))) {
             print_error('errornoexportconfig', 'analytics');
@@ -256,7 +256,7 @@ class model_config {
      */
     public function extract_import_contents(string $zipfilepath) : array {
 
-        $importtempdir = make_request_directory('analyticsimport' . microtime(false));
+        $importtempdir = make_request_directory();
 
         $zip = new \zip_packer();
         $filelist = $zip->extract_to_pathname($zipfilepath, $importtempdir);
diff --git a/lib/mlbackend/python/classes/processor.php b/lib/mlbackend/python/classes/processor.php
index 310c9813615..2c01133fbf4 100644
--- a/lib/mlbackend/python/classes/processor.php
+++ b/lib/mlbackend/python/classes/processor.php
@@ -276,7 +276,6 @@ class processor implements  \core_analytics\classifier, \core_analytics\regresso
             throw new \moodle_exception('errorpredictwrongformat', 'analytics', '', json_last_error_msg());
         }
 
-
         if ($resultobj->status != 0) {
             $resultobj = $this->format_error_info($resultobj);
         }
@@ -337,7 +336,7 @@ class processor implements  \core_analytics\classifier, \core_analytics\regresso
             // We need an extra request to get the resources generated during the evaluation process.
 
             // Directory to temporarly store the evaluation log zip returned by the server.
-            $evaluationtmpdir = make_request_directory('mlbackend_python_evaluationlog');
+            $evaluationtmpdir = make_request_directory();
             $evaluationzippath = $evaluationtmpdir . DIRECTORY_SEPARATOR . 'evaluationlog.zip';
 
             $requestparams = ['uniqueid' => $uniqueid, 'dirhash' => $this->hash_dir($outputdir),
@@ -377,7 +376,7 @@ class processor implements  \core_analytics\classifier, \core_analytics\regresso
      */
     public function export(string $uniqueid, string $modeldir) : string {
 
-        $exporttmpdir = make_request_directory('mlbackend_python_export');
+        $exporttmpdir = make_request_directory();
 
         if (!$this->useserver) {
             // Use the local file system.
@@ -717,7 +716,7 @@ class processor implements  \core_analytics\classifier, \core_analytics\regresso
      */
     private function zip_dir(string $dir) {
 
-        $ziptmpdir = make_request_directory('mlbackend_python');
+        $ziptmpdir = make_request_directory();
         $ziptmpfile = $ziptmpdir . DIRECTORY_SEPARATOR . 'mlbackend.zip';
 
         $files = get_directory_list($dir);
diff --git a/lib/setuplib.php b/lib/setuplib.php
index 040d589965c..5fa082b9968 100644
--- a/lib/setuplib.php
+++ b/lib/setuplib.php
@@ -1706,7 +1706,7 @@ function get_request_storage_directory($exceptiononerror = true, bool $forcecrea
  * @param   bool    $forcecreate Force creation of a new parent directory
  * @return  string  The full path to directory if successful, false if not; may throw exception
  */
-function make_request_directory($exceptiononerror = true, bool $forcecreate = false) {
+function make_request_directory(bool $exceptiononerror = true, bool $forcecreate = false) {
     $basedir = get_request_storage_directory($exceptiononerror, $forcecreate);
     return make_unique_writable_directory($basedir, $exceptiononerror);
 }