diff --git a/includes/utilities.inc b/includes/utilities.inc
index a7ec74e0..ea0fc849 100644
--- a/includes/utilities.inc
+++ b/includes/utilities.inc
@@ -204,13 +204,13 @@ function islandora_escape_pid_for_function($pid) {
   // Apparently, case doesn't matter for function calls in PHP, so let's not
   // really worry about changing the case.
   return str_replace(
-      // Any PID characters which are not valid in the name of a PHP function.
-      array(
-        ':',
-        '-',
-      ),
-      '_',
-      $pid
+    // Any PID characters which are not valid in the name of a PHP function.
+    array(
+      ':',
+      '-',
+    ),
+    '_',
+    $pid
   );
 }
 
@@ -281,16 +281,16 @@ function islandora_namespace_accessible($id) {
 function islandora_get_parents_from_rels_ext(FedoraObject $object) {
   try {
     $collections = array_merge(
-            $object->relationships->get(FEDORA_RELS_EXT_URI, 'isMemberOfCollection'),
-            $object->relationships->get(FEDORA_RELS_EXT_URI, 'isMemberOf'));
+      $object->relationships->get(FEDORA_RELS_EXT_URI, 'isMemberOfCollection'),
+      $object->relationships->get(FEDORA_RELS_EXT_URI, 'isMemberOf'));
   }
   catch (RepositoryException $e) {
     // @todo some logging would be nice, not sure what this throws.
     return array();
   }
   $map = function($o) {
-        return islandora_object_load($o['object']['value']);
-      };
+    return islandora_object_load($o['object']['value']);
+  };
   $collections = array_map($map, $collections);
   return array_filter($collections);
 }
@@ -400,7 +400,7 @@ function islandora_get_datastreams_requirements_from_content_model(FedoraObject
   $xml = new SimpleXMLElement($object[DS_COMP_STREAM]->content);
   foreach ($xml->dsTypeModel as $ds) {
     $dsid = (string) $ds['ID'];
-    $optional = drupal_strtolower((string) $ds['optional']);
+    $optional = strtolower((string) $ds['optional']);
     $mime = array();
     foreach ($ds->form as $form) {
       $mime[] = (string) $form['MIME'];
@@ -505,7 +505,7 @@ function islandora_display_repository_inaccessible_message() {
   $text = t('Islandora configuration');
   $link = l($text, 'admin/islandora/configure', array('attributes' => array('title' => $text)));
   $message = t('Could not connect to the repository. Please check the settings on the !link page.',
-          array('!link' => $link));
+             array('!link' => $link));
   drupal_set_message($message, 'error', FALSE);
 }
 
@@ -731,7 +731,7 @@ function islandora_get_content_models($ignore_system_namespace = TRUE) {
     $label = $result['label']['value'];
     $namespace = islandora_get_namespace($content_model);
     $ignore = $ignore_system_namespace && $namespace == 'fedora-system';
-    $ignore |= ! islandora_namespace_accessible($namespace);
+    $ignore |= !islandora_namespace_accessible($namespace);
     if (!$ignore) {
       $content_models[$content_model] = array('pid' => $content_model, 'label' => $label);
     }