diff --git a/inc/class.page.php b/inc/class.page.php
--- a/inc/class.page.php
+++ b/inc/class.page.php
@@ -41,6 +41,7 @@ set_include_path(get_include_path() . PA
  * sense soon.
  */
 /* defaults */
+$base_uri = '';
 $clean_urls = FALSE;
 $ga_trackers = array();
 $ga_conversions = array();
@@ -697,7 +698,7 @@ class page
    */
   public static function uri_resolve($uri = '')
   {
-    static $base_uri = '';
+    global $base_uri;
 
     static $host = '';
     if (empty($host))
diff --git a/inc/config.inc.example b/inc/config.inc.example
--- a/inc/config.inc.example
+++ b/inc/config.inc.example
@@ -42,6 +42,12 @@
 
 /**
  * \brief
+ *   Specify the base URI if Slate Permutate's auto-detection doesn't work.
+ */
+/* $base_uri = 'http://example.com/slate_permutate/'; */
+
+/**
+ * \brief
  *   Custom clean URLs for schedule sharing. $clean_urls must be enabled.
  * 
  * This string should be set to a valid base URL that is rewritten