diff --git a/api/islandora_xacml_api.install b/api/islandora_xacml_api.install
index 7da773a..4ba1a54 100644
--- a/api/islandora_xacml_api.install
+++ b/api/islandora_xacml_api.install
@@ -5,6 +5,18 @@
  * Installation/upgrade hooks.
  */
 
+/**
+ * Implements hook_uninstall().
+ */
+function islandora_xacml_api_uninstall {
+  $variables = array(
+    'islandora_xacml_api_save_relationships',
+    'islandora_xacml_api_rels_viewable_role',
+    'islandora_xacml_api_rels_viewable_user',
+  );
+  array_walk($variables, 'variable_del');
+}
+
 /**
  * Fix "inheritXacmlFrom" literals to be URIs.
  */
diff --git a/islandora_xacml_editor.install b/islandora_xacml_editor.install
new file mode 100644
index 0000000..5bbc086
--- /dev/null
+++ b/islandora_xacml_editor.install
@@ -0,0 +1,21 @@
+<?php
+
+/**
+ * @file
+ * This file contains all install related hooks.
+ */
+
+/**
+ * Implements hook_uninstall().
+ */
+function islandora_xacml_editor_uninstall() {
+  $variables = array(
+    'islandora_xacml_editor_restricted_dsids',
+    'islandora_xacml_editor_restricted_mimes',
+    'islandora_xacml_editor_show_dsidregex',
+    'islandora_xacml_editor_show_mimeregex',
+    'islandora_xacml_editor_default_users',
+    'islandora_xacml_editor_default_roles',
+  );
+  array_walk($variables, 'variable_del');
+}