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--- a/libupnpp/config.h.in
+++ b/libupnpp/config.h.in
@@ -17,9 +17,6 @@
 
 /* Define to 1 if you have the `expat' library (-lexpat). */
 #undef HAVE_LIBEXPAT
-
-/* Define to 1 if you have the `ixml' library (-lixml). */
-#undef HAVE_LIBIXML
 
 /* Define to 1 if you have the `pthread' library (-lpthread). */
 #undef HAVE_LIBPTHREAD