diff --git a/Code/Editor/Objects/EntityObject.h b/Code/Editor/Objects/EntityObject.h
index c3e379bccc..c6b7e4ce2d 100644
--- a/Code/Editor/Objects/EntityObject.h
+++ b/Code/Editor/Objects/EntityObject.h
@@ -27,6 +27,7 @@
 #define CLASS_ENVIRONMENT_LIGHT "EnvironmentLight"
 
 class CEntityObject;
+class CSelectionGroup;
 class QMenu;
 
 /*!
diff --git a/Code/Editor/TrackView/TrackViewSequence.h b/Code/Editor/TrackView/TrackViewSequence.h
index a392ad00f9..8f686af0cb 100644
--- a/Code/Editor/TrackView/TrackViewSequence.h
+++ b/Code/Editor/TrackView/TrackViewSequence.h
@@ -11,6 +11,7 @@
 #define CRYINCLUDE_EDITOR_TRACKVIEW_TRACKVIEWSEQUENCE_H
 #pragma once
 
+#include <IEditor.h>
 #include "IMovieSystem.h"
 
 #include <AzToolsFramework/UI/PropertyEditor/PropertyEditorAPI.h>