diff --git a/core/includes/theme.inc b/core/includes/theme.inc
index 0c2c16b..117f08c 100644
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
@@ -1042,7 +1042,7 @@ function template_preprocess_table(&$variables) {
       }
     }
   }
-  if ($variables['no_striping']) {
+  if (!empty($variables['no_striping'])) {
     $variables['attributes']['data-no-striping'] = 1;
   }
 }