diff --git a/libraries/chain/include/graphene/chain/event_group_object.hpp b/libraries/chain/include/graphene/chain/event_group_object.hpp
index 38fb9f2d..75d26ff8 100644
--- a/libraries/chain/include/graphene/chain/event_group_object.hpp
+++ b/libraries/chain/include/graphene/chain/event_group_object.hpp
@@ -27,7 +27,6 @@
 #include <graphene/db/object.hpp>
 #include <graphene/db/generic_index.hpp>
 
-#include <boost/multi_index/composite_key.hpp>
 
 namespace graphene { namespace chain {
 
diff --git a/libraries/chain/include/graphene/chain/event_object.hpp b/libraries/chain/include/graphene/chain/event_object.hpp
index e6989240..c97e7660 100644
--- a/libraries/chain/include/graphene/chain/event_object.hpp
+++ b/libraries/chain/include/graphene/chain/event_object.hpp
@@ -28,7 +28,6 @@
 #include <graphene/db/generic_index.hpp>
 #include <graphene/chain/protocol/event.hpp>
 
-#include <boost/multi_index/composite_key.hpp>
 
 namespace graphene { namespace chain {
    class event_object;