diff --git a/sites/all/themes/omega/alpha/includes/alpha.inc b/sites/all/themes/omega/alpha/includes/alpha.inc
index bf04b4eb9..342ff14eb 100644
--- a/sites/all/themes/omega/alpha/includes/alpha.inc
+++ b/sites/all/themes/omega/alpha/includes/alpha.inc
@@ -892,11 +892,11 @@ function alpha_retrieve_libraries($theme) {
  */
 function alpha_calculate_primary(&$items, $primary, $container) {
   if (!empty($items)) {
-    $items[$primary]['#grid']['columns'] = $container - $items[$primary]['#grid']['prefix'] - $items[$primary]['#grid']['suffix'];
+    $items[$primary]['#grid']['columns'] = $container - (int)$items[$primary]['#grid']['prefix'] - (int)$items[$primary]['#grid']['suffix'];
 
     foreach (element_children($items) as $item) {
       if ($item != $primary) {
-        $items[$primary]['#grid']['columns'] -= $items[$item]['#grid']['columns'] + $items[$item]['#grid']['prefix'] + $items[$item]['#grid']['suffix'];
+        $items[$primary]['#grid']['columns'] -= $items[$item]['#grid']['columns'] + (int)$items[$item]['#grid']['prefix'] + (int)$items[$item]['#grid']['suffix'];
       }
     }
   }
diff --git a/sites/all/themes/omega/alpha/includes/base.inc b/sites/all/themes/omega/alpha/includes/base.inc
index 57878b555..961268c06 100644
--- a/sites/all/themes/omega/alpha/includes/base.inc
+++ b/sites/all/themes/omega/alpha/includes/base.inc
@@ -212,19 +212,19 @@ class alpha_theme_container {
     if (!isset($this->regions)) {
       $this->zones();
       $this->sections();
-      $this->regions = array();      
+      $this->regions = array();
       $exclude = alpha_regions_exclude();
 
       foreach (system_region_list($this->theme) as $region => $title) {
         if (!in_array($region, $exclude)) {
           $zone = alpha_region_get_setting('zone', $region, NULL, $this->theme);
-          $prefix = alpha_region_get_setting('prefix', $region, 0, $this->theme);
+          $prefix = (int) alpha_region_get_setting('prefix', $region, 0, $this->theme);
           $columns = alpha_region_get_setting('columns', $region, 1, $this->theme);
-          $suffix = alpha_region_get_setting('suffix', $region, 0, $this->theme);
-          
+          $suffix = (int) alpha_region_get_setting('suffix', $region, 0, $this->theme);
+
           $zone = isset($zone) && isset($this->zones[$zone]) ? $zone : NULL;
           $section = isset($zone) && isset($this->zones[$zone]['section']) ? $this->zones[$zone]['section'] : NULL;
-          
+
           $this->regions[$region] = array(
             'region' => $region,
             'name' => $title,