diff --git a/plugins/relationships/entity_from_field.inc b/plugins/relationships/entity_from_field.inc
index 15f712b..6e748ad 100644
--- a/plugins/relationships/entity_from_field.inc
+++ b/plugins/relationships/entity_from_field.inc
@@ -177,7 +177,7 @@ function ctools_entity_from_field_context($context, $conf) {
         $plugin_info = ctools_get_relationship($conf['name']);
         $to_entity_id = $items[$delta][$plugin_info['source key']];
         $loaded_to_entity = array_shift(entity_load($to_entity, array($to_entity_id)));
-        if(function_exists($to_entity_info['access callback']) && !call_user_func($to_entity_info['access callback'], 'view', $loaded_to_entity)) {
+        if (isset($to_entity_info['access callback']) && function_exists($to_entity_info['access callback']) && !call_user_func($to_entity_info['access callback'], 'view', $loaded_to_entity)) {
           return ctools_context_create_empty('entity:' . $to_entity, NULL);
         }
         else {