diff --git a/includes/project_issue_node_type.inc b/includes/project_issue_node_type.inc
index d0906d3..59a57e3 100644
--- a/includes/project_issue_node_type.inc
+++ b/includes/project_issue_node_type.inc
@@ -513,7 +513,7 @@ function _project_issue_create_issue_node_type() {
     'translatable' => '0',
     'settings' => array(),
     'field_name' => 'field_issue_changes',
-    'type' => 'node_revision_diff',
+    'type' => 'nodechanges_revision_diff',
     'cardinality' => FIELD_CARDINALITY_UNLIMITED,
   );
   field_create_field($field);
@@ -525,7 +525,7 @@ function _project_issue_create_issue_node_type() {
       'type' => 'field_extrawidgets_hidden',
       'active' => 1,
       'settings' => array(
-        'formatter' => 'node_revision_diff_default',
+        'formatter' => 'nodechanges_diff_default',
         'display_empty' => 0,
       ),
     ),
@@ -535,7 +535,7 @@ function _project_issue_create_issue_node_type() {
     'display' => array(
       'default' => array(
         'label' => 'above',
-        'type' => 'node_revision_diff_default',
+        'type' => 'nodechanges_diff_default',
         'settings' => array(),
         'weight' => 1,
       ),