diff --git a/src/common.hpp b/src/common.hpp
index 4a9914c..a35addb 100644
--- a/src/common.hpp
+++ b/src/common.hpp
@@ -60,6 +60,7 @@
 
 using std::shared_ptr;
 using std::weak_ptr;
+using std::bad_weak_ptr;
 using std::make_shared;
 using std::enable_shared_from_this;
 
@@ -102,6 +103,7 @@
 
 using boost::shared_ptr;
 using boost::weak_ptr;
+using boost::bad_weak_ptr;
 using boost::make_shared;
 using boost::enable_shared_from_this;