diff --git a/src/register/ledger-core/gnc-ledger-display.c b/src/register/ledger-core/gnc-ledger-display.c
index 4c42be7a9d..07e49197f5 100644
--- a/src/register/ledger-core/gnc-ledger-display.c
+++ b/src/register/ledger-core/gnc-ledger-display.c
@@ -29,6 +29,7 @@
 #include "Group.h"
 #include "Query.h"
 #include "QueryCore.h"
+#include "QueryNew.h"
 #include "SX-book.h"
 #include "Transaction.h"
 #include "global-options.h"