diff --git a/app/core.cpp b/app/core.cpp
index b667e9698..e55d4b87b 100644
--- a/app/core.cpp
+++ b/app/core.cpp
@@ -39,6 +39,7 @@
 #include "node/factory.h"
 #include "panel/panelmanager.h"
 #include "panel/project/project.h"
+#include "panel/viewer/viewer.h"
 #include "project/item/footage/footage.h"
 #include "project/item/sequence/sequence.h"
 #include "render/colormanager.h"
diff --git a/app/panel/panelmanager.h b/app/panel/panelmanager.h
index 3334b13cf..28a9ab6a5 100644
--- a/app/panel/panelmanager.h
+++ b/app/panel/panelmanager.h
@@ -24,7 +24,6 @@
 #include <QObject>
 #include <QList>
 
-#include "panel/viewer/viewer.h"
 #include "widget/panel/panel.h"
 
 /**