diff --git a/Gems/Atom/Tools/MaterialEditor/Code/Source/Window/PerformanceMonitor/PerformanceMonitorWidget.cpp b/Gems/Atom/Tools/MaterialEditor/Code/Source/Window/PerformanceMonitor/PerformanceMonitorWidget.cpp
index 72c8daa63c..70a4361409 100644
--- a/Gems/Atom/Tools/MaterialEditor/Code/Source/Window/PerformanceMonitor/PerformanceMonitorWidget.cpp
+++ b/Gems/Atom/Tools/MaterialEditor/Code/Source/Window/PerformanceMonitor/PerformanceMonitorWidget.cpp
@@ -15,7 +15,7 @@
 #include <Source/Window/PerformanceMonitor/PerformanceMonitorWidget.h>
 #include <Source/Window/PerformanceMonitor/ui_PerformanceMonitorWidget.h>
 
-#include <Qtimer>
+#include <QTimer>
 
 namespace MaterialEditor
 {
diff --git a/Gems/Atom/Tools/MaterialEditor/Code/Source/Window/PerformanceMonitor/PerformanceMonitorWidget.h b/Gems/Atom/Tools/MaterialEditor/Code/Source/Window/PerformanceMonitor/PerformanceMonitorWidget.h
index a75e856d83..dd31faef90 100644
--- a/Gems/Atom/Tools/MaterialEditor/Code/Source/Window/PerformanceMonitor/PerformanceMonitorWidget.h
+++ b/Gems/Atom/Tools/MaterialEditor/Code/Source/Window/PerformanceMonitor/PerformanceMonitorWidget.h
@@ -13,7 +13,7 @@
 #pragma once
 
 #include <QWidget>
-#include <Qtimer>
+#include <QTimer>
 
 namespace Ui
 {