diff -up cups-1.4.6/cups/language.c.ascii cups-1.4.6/cups/language.c
--- cups-1.4.6/cups/language.c.ascii	2010-08-10 08:15:55.000000000 +0200
+++ cups-1.4.6/cups/language.c	2011-04-18 16:33:59.000000000 +0200
@@ -670,6 +670,9 @@ cupsLangGet(const char *language)	/* I -
 	break;
       }
 
+    if (encoding == CUPS_US_ASCII)
+      encoding = CUPS_AUTO_ENCODING;
+
     if (encoding == CUPS_AUTO_ENCODING)
     {
      /*