diff --git a/blockgroup.module b/blockgroup.module
index a9f5c9c..e3da03a 100644
--- a/blockgroup.module
+++ b/blockgroup.module
@@ -347,8 +347,8 @@ function blockgroup_page_alter(&$page) {
   // Move all blockgroup regions into $page['#blockgroups'] in order to prevent
   // certain themes from messing with them.
   $blockgroup_regions = array_intersect_key($page, blockgroup_region_list());
-  foreach ($blockgroup_regions as $region => $blocks) {
-    $page['#blockgroups'][$region] = $blocks;
+  foreach (array_keys($blockgroup_regions) as $region) {
+    $page['#blockgroups'][$region] = &$page[$region];
     unset($page[$region]);
   }
 }