diff --git a/nodeblock.module b/nodeblock.module
index c5ffb4b..92a227a 100644
--- a/nodeblock.module
+++ b/nodeblock.module
@@ -190,7 +190,7 @@ function nodeblock_link($type, $node = NULL, $teaser = FALSE) {
  * templates, but a higher priority than a generic node.tpl.php.
  */
 function nodeblock_preprocess_node(&$variables) {
-  if ($variables['node']->nodeblock) {
+  if (!empty($variables['node']->nodeblock)) {
     array_unshift($variables['template_files'], 'node-nodeblock-default');
   }
 }