diff --git a/workflow/engine/classes/class.pmScript.php b/workflow/engine/classes/class.pmScript.php
index 77358d74f..7e2dc6a62 100755
--- a/workflow/engine/classes/class.pmScript.php
+++ b/workflow/engine/classes/class.pmScript.php
@@ -341,7 +341,11 @@ class PMScript
                     if (!isset($this->aFields[$aMatch[2][$i][0]])) {
                         eval("\$this->aFields['" . $aMatch[2][$i][0] . "']" . $aMatch[5][$i][0] . " = '';");
                     } else {
-                        eval("if (!isset(\$this->aFields['" . $aMatch[2][$i][0] . "']" . $aMatch[5][$i][0] . ")) {\$this->aFields['" . $aMatch[2][$i][0] . "']" . $aMatch[5][$i][0] . " = '';}");
+                        if (isset($aMatch[5][$i][0])) {
+                            eval("if (!isset(\$this->aFields['" . $aMatch[2][$i][0] . "']" . $aMatch[5][$i][0] . ")) {\$this->aFields['" . $aMatch[2][$i][0] . "']" . $aMatch[5][$i][0] . " = '';}");
+                        } else {
+                            eval("if (!isset(\$this->aFields['" . $aMatch[2][$i][0] . "'])) {\$this->aFields['" . $aMatch[2][$i][0] . "'] = '';}");
+                        }
                     }
                 }
                 $sAux = substr( $this->sScript, $iAux, $aMatch[0][$i][1] - $iAux );