diff --git a/workflow/engine/bin/tasks/cliUpgrade.php b/workflow/engine/bin/tasks/cliUpgrade.php
index 9a596dd6a..152e1db20 100755
--- a/workflow/engine/bin/tasks/cliUpgrade.php
+++ b/workflow/engine/bin/tasks/cliUpgrade.php
@@ -99,7 +99,7 @@ function run_upgrade($command, $args)
     CLI::logging("Clearing cache...\n");
     if (defined('PATH_C')) {
         G::rm_dir(PATH_C);
-        @mkdir(PATH_C, 0777, true);
+        G::mk_dir(PATH_C, 0777);
     }
     $workspaces = get_workspaces_from_args($command);
     $count = count($workspaces);