diff --git a/refptr_types.h b/refptr_types.h
index 8a1dbd9..7f10995 100644
--- a/refptr_types.h
+++ b/refptr_types.h
@@ -58,6 +58,9 @@
 class Profile;
 typedef scoped_refptr<Profile> ProfileRefPtr;
 
+class Connection;
+typedef scoped_refptr<Connection> ConnectionRefPtr;
+
 }  // namespace shill
 
 #endif  // SHILL_REFPTR_TYPES_