diff --git a/includes/project_issue_node_type.inc b/includes/project_issue_node_type.inc
index fd12042..2b4f710 100644
--- a/includes/project_issue_node_type.inc
+++ b/includes/project_issue_node_type.inc
@@ -35,7 +35,7 @@ function _project_issue_create_issue_node_type() {
   variable_set('comment_form_location_project_issue', COMMENT_FORM_BELOW);
 
   // Tell project_issue that this node type is an issue node type.
-  variable_set('project_issue_project_issue', TRUE);
+  variable_set('project_behavior_project_issue', 'project_issue');
 
   // Define default fields and field instances.