diff --git a/includes/common.inc b/includes/common.inc
index 72fcf76..893942b 100644
--- a/includes/common.inc
+++ b/includes/common.inc
@@ -7569,44 +7569,30 @@ function entity_prepare_view($entity_type, $entities, $langcode = NULL) {
  *   uri of its own.
  */
 function entity_uri($entity_type, $entity) {
-  // This check enables the URI of an entity to be easily overridden from what
-  // the callback for the entity type or bundle would return, and it helps
-  // minimize performance overhead when entity_uri() is called multiple times
-  // for the same entity.
-  if (!isset($entity->uri)) {
-    $info = entity_get_info($entity_type);
-    list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
-
-    // A bundle-specific callback takes precedence over the generic one for the
-    // entity type.
-    if (isset($info['bundles'][$bundle]['uri callback'])) {
-      $uri_callback = $info['bundles'][$bundle]['uri callback'];
-    }
-    elseif (isset($info['uri callback'])) {
-      $uri_callback = $info['uri callback'];
-    }
-    else {
-      $uri_callback = NULL;
-    }
+  $info = entity_get_info($entity_type);
+  list($id, $vid, $bundle) = entity_extract_ids($entity_type, $entity);
 
-    // Invoke the callback to get the URI. If there is no callback, set the
-    // entity's 'uri' property to FALSE to indicate that it is known to not have
-    // a URI.
-    if (isset($uri_callback) && function_exists($uri_callback)) {
-      $entity->uri = $uri_callback($entity);
-      if (!isset($entity->uri['options'])) {
-        $entity->uri['options'] = array();
-      }
-      // Pass the entity data to url() so that alter functions do not need to
-      // lookup this entity again.
-      $entity->uri['options']['entity_type'] = $entity_type;
-      $entity->uri['options']['entity'] = $entity;
-    }
-    else {
-      $entity->uri = FALSE;
-    }
+  // A bundle-specific callback takes precedence over the generic one for the
+  // entity type.
+  if (isset($info['bundles'][$bundle]['uri callback'])) {
+    $uri_callback = $info['bundles'][$bundle]['uri callback'];
+  }
+  elseif (isset($info['uri callback'])) {
+    $uri_callback = $info['uri callback'];
+  }
+  else {
+    return NULL;
+  }
+
+  // Invoke the callback to get the URI. If there is no callback, return NULL.
+  if (isset($uri_callback) && function_exists($uri_callback)) {
+    $uri = $uri_callback($entity);
+    // Pass the entity data to url() so that alter functions do not need to
+    // lookup this entity again.
+    $uri['options']['entity_type'] = $entity_type;
+    $uri['options']['entity'] = $entity;
+    return $uri;
   }
-  return $entity->uri ? $entity->uri : NULL;
 }
 
 /**