diff --git a/src/CustomForm.php b/src/CustomForm.php
index 5ef1113..10cf400 100644
--- a/src/CustomForm.php
+++ b/src/CustomForm.php
@@ -99,6 +99,7 @@ function CustomForm()
 			//	Do we need to submit this form?
 			if (isset($_GET['submit']))
 			{
+				checkSession();
 				$vars = array();
 				$replace = array();
 				$i = -1;
diff --git a/src/CustomForm.template.php b/src/CustomForm.template.php
index 747f241..249f5cc 100644
--- a/src/CustomForm.template.php
+++ b/src/CustomForm.template.php
@@ -109,7 +109,7 @@ function form_template_submit_form()
 				</td>
 			</tr>
 		</table>
-		<input type="hidden" name="sc" value="', $context['session_id'], '" />
+		<input type="hidden" name="', $context['session_var'], '" value="', $context['session_id'], '">
 	</form>';
 }