From 9baf76beab35c190eee3044e2d57b4b70421e5a3 Mon Sep 17 00:00:00 2001
From: John <jonawals@amazon.com>
Date: Mon, 11 Oct 2021 13:28:33 +0100
Subject: [PATCH] Add missing header for non-unity builds on Linux.

Signed-off-by: John <jonawals@amazon.com>
---
 Code/Editor/MainWindow.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Code/Editor/MainWindow.cpp b/Code/Editor/MainWindow.cpp
index 05477bb0c7..ed72cd9170 100644
--- a/Code/Editor/MainWindow.cpp
+++ b/Code/Editor/MainWindow.cpp
@@ -98,6 +98,7 @@ AZ_POP_DISABLE_WARNING
 #include "ActionManager.h"
 
 #include <ImGuiBus.h>
+#include <AzToolsFramework/Viewport/ViewportMessages.h>
 #include <LmbrCentral/Audio/AudioSystemComponentBus.h>
 
 using namespace AZ;