diff --git a/plugins/views_content_cache/base.inc b/plugins/views_content_cache/base.inc
index 346ab63..1edb737 100644
--- a/plugins/views_content_cache/base.inc
+++ b/plugins/views_content_cache/base.inc
@@ -26,7 +26,7 @@ class views_content_cache_key {
    *   A FormAPI element that will appear as part of the views content cache
    *   options form when building a view.
    */
-  function options_form($value, &$handler) {
+  function options_form($value, &$handler = NULL) {
     return array();
   }
 
diff --git a/plugins/views_content_cache/comment.inc b/plugins/views_content_cache/comment.inc
index 41e869a..e528873 100644
--- a/plugins/views_content_cache/comment.inc
+++ b/plugins/views_content_cache/comment.inc
@@ -5,7 +5,7 @@
  */
 
 class views_content_cache_key_comment extends views_content_cache_key {
-  function options_form($value) {
+  function options_form($value, &$handler = NULL) {
     return array(
       '#title' => t('Comments'),
       '#description' => t('Checks for new or updated comments'),
diff --git a/plugins/views_content_cache/node.inc b/plugins/views_content_cache/node.inc
index b83eb3a..ce2f83f 100644
--- a/plugins/views_content_cache/node.inc
+++ b/plugins/views_content_cache/node.inc
@@ -5,7 +5,7 @@
  */
 
 class views_content_cache_key_node extends views_content_cache_key {
-  function options_form($value, &$handler) {
+  function options_form($value, &$handler = NULL) {
     return array(
       '#title' => t('Node types'),
       '#description' => t('Checks for new or updated nodes of any of the selected types.'),
diff --git a/plugins/views_content_cache/node_only.inc b/plugins/views_content_cache/node_only.inc
index e716eaf..e2b24b7 100644
--- a/plugins/views_content_cache/node_only.inc
+++ b/plugins/views_content_cache/node_only.inc
@@ -5,7 +5,7 @@
  */
 
 class views_content_cache_key_node_only extends views_content_cache_key {
-  function options_form($value) {
+  function options_form($value, &$handler = NULL) {
     return array(
       '#title' => t('Node only'),
       '#description' => t('Allows the node segment to be refined to only include main operations create/update/delete. Be careful about combing with other node related segments.'),
diff --git a/plugins/views_content_cache/og.inc b/plugins/views_content_cache/og.inc
index 22423f2..73d0d4b 100644
--- a/plugins/views_content_cache/og.inc
+++ b/plugins/views_content_cache/og.inc
@@ -12,7 +12,7 @@
  * belongs to.
  */
 class views_content_cache_key_og extends views_content_cache_key {
-  function options_form($value, &$handler) {
+  function options_form($value, &$handler = NULL) {
     return array(
       '#title' => t('Organic Groups'),
       '#description' => t('Checks for updates related to Organic Groups'),
diff --git a/plugins/views_content_cache/votingapi.inc b/plugins/views_content_cache/votingapi.inc
index 39ce4f9..047ab35 100644
--- a/plugins/views_content_cache/votingapi.inc
+++ b/plugins/views_content_cache/votingapi.inc
@@ -6,7 +6,7 @@
 
 class views_content_cache_key_votingapi extends views_content_cache_key {
 
-  function options_form($value) {
+  function options_form($value, &$handler = NULL) {
     // Get all of the possible tags that we could monitor:
     $metadata = votingapi_metadata();
     $options = array();