diff --git a/libgnucash/engine/Transaction.cpp b/libgnucash/engine/Transaction.cpp
index efb088f269..5b0938507a 100644
--- a/libgnucash/engine/Transaction.cpp
+++ b/libgnucash/engine/Transaction.cpp
@@ -25,7 +25,6 @@
 \********************************************************************/
 
 #include "qofinstance.h"
-#include <__nullptr>
 #include <config.h>
 
 #include <platform.h>