diff --git a/workflow/engine/classes/class.processes.php b/workflow/engine/classes/class.processes.php
index 0a8e239fc..1d76884a7 100755
--- a/workflow/engine/classes/class.processes.php
+++ b/workflow/engine/classes/class.processes.php
@@ -2377,7 +2377,7 @@ class Processes {
         G::verifyPath($path, true);
     }
     $proTitle = (substr(G::inflect($data->process['PRO_TITLE']), 0, 30));
-    $proTitle = preg_replace("[^A-Za-z0-9_]", "", $proTitle);
+    $proTitle = preg_replace("/[^A-Za-z0-9_]/", "", $proTitle);
 
 
     $index = '';
diff --git a/workflow/engine/classes/class.xpdl.php b/workflow/engine/classes/class.xpdl.php
index f7af589fa..0fb849e12 100755
--- a/workflow/engine/classes/class.xpdl.php
+++ b/workflow/engine/classes/class.xpdl.php
@@ -322,7 +322,7 @@ class Xpdl extends processes
         G::verifyPath($path, true);
     }
     $proTitle  = (substr(G::inflect($oData->process['PRO_TITLE']), 0, 30));
-    $proTitle  = preg_replace("[^A-Za-z0-9_]", "", $proTitle);
+    $proTitle  = preg_replace("/[^A-Za-z0-9_]/", "", $proTitle);
     $index     = '';
     $lastIndex = '';
     do {