diff --git a/libraries/app/database_api.cpp b/libraries/app/database_api.cpp
index cebfdc89..67717855 100644
--- a/libraries/app/database_api.cpp
+++ b/libraries/app/database_api.cpp
@@ -2,6 +2,7 @@
 #include <graphene/app/database_api.hpp>
 
 #include <fc/bloom_filter.hpp>
+#include <fc/smart_ref_impl.hpp>
 
 #include <fc/crypto/hex.hpp>