--- entity_translation.module	Tue Mar 15 21:49:04 2011
+++ entity_translation.module	Wed Mar 16 21:25:31 2011
@@ -121,9 +121,9 @@
 function entity_translation_menu() {
   // Create tabs for all possible entity types.
   foreach (entity_get_info() as $entity_type => $info) {
-    // Menu is rebuilt while determining base paths so we might not have them
-    // available yet.
-    if (isset($info['translation']['entity_translation']['base path']) && entity_translation_enabled($entity_type)) {
+    // Menu is rebuilt while determining base paths and callback so we might 
+    // not have them available yet.
+    if (isset($info['translation']['entity_translation']['base path']) && isset($info['translation']['entity_translation']['access callback']) && entity_translation_enabled($entity_type)) {
       // Extract informations from the bundle description.
       $path = $info['translation']['entity_translation']['base path'];
       $keys = array('theme callback', 'theme arguments', 'access callback', 'access arguments', 'load arguments');