diff -r 3662a135667b -r e500e17d97b8 src/base/trie.hh
--- a/src/base/trie.hh	Tue Apr 17 05:10:38 2012 -0700
+++ b/src/base/trie.hh	Tue Apr 17 05:11:03 2012 -0700
@@ -31,6 +31,8 @@
 #ifndef __BASE_TRIE_HH__
 #define __BASE_TRIE_HH__
 
+#include <cassert>
+
 #include "base/cprintf.hh"
 #include "base/misc.hh"
 #include "base/types.hh"