diff --git a/nodewords_og/nodewords_og.install b/nodewords_og/nodewords_og.install
index ceacfe9..63c5aad 100644
--- a/nodewords_og/nodewords_og.install
+++ b/nodewords_og/nodewords_og.install
@@ -10,3 +10,37 @@
 function nodewords_og_install() {
   drupal_set_message(t("Please see the README.txt file included with the Nodewords module for instructions on customizing the theme to make this work correctly."), 'warning');
 }
+
+/**
+ * Implements hook_uninstall().
+ */
+function nodewords_og_uninstall() {
+  if (db_table_exists('nodewords')) {
+    $metatags = array(
+      'og:site_name',
+      'og:title',
+      'og:type',
+      'og:image',
+      'og:url',
+      'og:description',
+      'og:email',
+      'og:phone_number',
+      'og:fax_number',
+      'og:latitude',
+      'og:longitude',
+      'og:street-address',
+      'og:locality',
+      'og:region',
+      'og:postal-code',
+      'og:country-name',
+      'og:video',
+      'og:video:width',
+      'og:video:height',
+      'og:video:type',
+      'fb:admins',
+      'fb:app_id',
+    );
+
+    db_query("DELETE FROM {nodewords} WHERE name IN (". db_placeholders($metatags, 'varchar') .")", $metatags);
+  }
+}