diff --git a/application/utils.inc.php b/application/utils.inc.php
index dfcb9034f..934a7a874 100644
--- a/application/utils.inc.php
+++ b/application/utils.inc.php
@@ -2172,4 +2172,14 @@ class utils
 	{
 		return APPROOT.'env-'.utils::GetCurrentEnvironment().'/'.$sModule.'/';
 	}
+
+	public static function GetCurrentUserName()
+	{
+		if (function_exists('posix_getpwuid'))
+		{
+			return posix_getpwuid(posix_geteuid())['name'];
+		}
+
+		return getenv('username');
+	}
 }
diff --git a/webservices/cron.php b/webservices/cron.php
index 88ab503ac..1b56450d2 100644
--- a/webservices/cron.php
+++ b/webservices/cron.php
@@ -92,7 +92,7 @@ function RunTask($oProcess, BackgroundTask $oTask, $oStartDate, $iTimeLimit)
 		// Record (when starting) that this task was started, just in case it crashes during the execution
 		$oTask->Set('latest_run_date', $oDateStarted->format('Y-m-d H:i:s'));
 		// Record the current user running the cron
-		$oTask->Set('system_user', getenv("username"));
+		$oTask->Set('system_user', utils::GetCurrentUserName());
 		$oTask->DBUpdate();
 		$sMessage = $oProcess->Process($iTimeLimit);
 	}