diff --git a/src/TaggedCache.h b/src/TaggedCache.h
index f07a80d138..bb5dc36667 100644
--- a/src/TaggedCache.h
+++ b/src/TaggedCache.h
@@ -6,6 +6,7 @@
 #include <boost/thread/recursive_mutex.hpp>
 #include <boost/unordered_map.hpp>
 #include <boost/shared_ptr.hpp>
+#include <boost/make_shared.hpp>
 
 // This class implemented a cache and a map. The cache keeps objects alive
 // in the map. The map allows multiple code paths that reference objects