diff --git a/zurb_foundation.theme b/zurb_foundation.theme
index 8fcb832..25305d0 100644
--- a/zurb_foundation.theme
+++ b/zurb_foundation.theme
@@ -114,7 +114,7 @@ function zurb_foundation_preprocess_field(&$variables) {
   // Add class to a specific fields across content types.
   switch ($variables['element']['#field_name']) {
     case 'body':
-      $classes = array('body');
+      $classes[] = 'body';
       break;
 
     case 'field_summary':
@@ -123,13 +123,11 @@ function zurb_foundation_preprocess_field(&$variables) {
 
     case 'field_link':
     case 'field_date':
-      // Replace classes entirely, instead of adding extra.
-    $classes = array('text-content');
+      $classes[] = 'text-content';
       break;
 
     case 'field_image':
-      // Replace classes entirely, instead of adding extra.
-      $classes = array('image');
+      $classes[] = 'image';
       break;
 
     default: