diff --git a/sources/diagramview.cpp b/sources/diagramview.cpp
index e4851cd6c..54f0a2208 100644
--- a/sources/diagramview.cpp
+++ b/sources/diagramview.cpp
@@ -37,6 +37,7 @@
 #include "qeticons.h"
 #include "qetmessagebox.h"
 #include "qtextorientationspinboxwidget.h"
+#include "conductorautonumerotation.h"
 
 
 /**