Possibly-missing include.

1 files changed, 1 insertions, 0 deletions

diff --git a/src/util.h b/src/util.h
index 738a02a..56e649f 100644
--- a/src/util.h
+++ b/src/util.h
@@ -22,6 +22,7 @@
  */
 
 #include <boost/optional.hpp>
+#include <boost/shared_ptr.hpp>
 #include <string>
 
 namespace sub {