diff --git a/dbg-lib/output_formatter.h b/dbg-lib/output_formatter.h
index 2cc4bc5..a21a92c 100644
--- a/dbg-lib/output_formatter.h
+++ b/dbg-lib/output_formatter.h
@@ -6,6 +6,7 @@
 #include <boost/tuple/tuple.hpp>
 #include <boost/variant.hpp>
 
+#include <memory>
 #include <vector>
 #include <string>