diff -r 5c5d970ef2f0 -r 69bde1d90c04 src/hugo/unionfind.h
--- a/src/hugo/unionfind.h	Thu May 06 13:46:07 2004 +0000
+++ b/src/hugo/unionfind.h	Thu May 06 13:48:04 2004 +0000
@@ -12,7 +12,7 @@
 #include <utility>
 #include <algorithm>
 
-#include <invalid.h>
+#include <hugo/invalid.h>
 
 namespace hugo {