diff --git a/hfs.install b/hfs.install
new file mode 100644
index 0000000..5b8197b
--- /dev/null
+++ b/hfs.install
@@ -0,0 +1,15 @@
+<?php
+
+/**
+ * @file
+ * Uninstall functions for hfs module.
+ */
+
+/**
+ * Implements hook_uninstall().
+ */
+function hfs_uninstall() {
+  variable_del("hfs_header_scripts");
+  variable_del("hfs_body_scripts");
+  variable_del("hfs_footer_scripts");
+}