--- print_pdf.pages.inc	2011-03-19 15:33:51.012000000 -0400
+++ print_pdf.pages.inc	2011-03-19 15:38:20.752000000 -0400
@@ -105,9 +105,9 @@
   global $base_url, $language;
 
   // And converted from private to public paths
-  switch (variable_get('language_negotiation', LANGUAGE_NEGOTIATION_NONE)) {
-    case LANGUAGE_NEGOTIATION_PATH_DEFAULT:
-    case LANGUAGE_NEGOTIATION_PATH:
+  switch (variable_get('language_negotiation', 'LANGUAGE_NEGOTIATION_NONE')) {
+    case 'LANGUAGE_NEGOTIATION_PATH_DEFAULT':
+    case 'LANGUAGE_NEGOTIATION_PATH':
       $lang = $language->language;
       break;
     default: