diff --git a/code/UserDefinedForm.php b/code/UserDefinedForm.php
index 07d5c93..03c657e 100755
--- a/code/UserDefinedForm.php
+++ b/code/UserDefinedForm.php
@@ -821,8 +821,8 @@ class UserDefinedForm_EmailRecipient extends DataObject {
 		);
 		
 		if($this->Form()) {
-			$validEmailFields = DataObject::get("EditableEmailField", "\"ParentID\" = '$this->FormID'");
-			$multiOptionFields = DataObject::get("EditableMultipleOptionField", "\"ParentID\" = '$this->FormID'");
+			$validEmailFields = DataObject::get("EditableEmailField", "\"ParentID\" = '" . (int)$this->FormID . "'");
+			$multiOptionFields = DataObject::get("EditableMultipleOptionField", "\"ParentID\" = '" . (int)$this->FormID . "'");
 			
 			// if they have email fields then we could send from it
 			if($validEmailFields) {