diff --git a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/CoreLights/AreaLightComponentController.cpp b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/CoreLights/AreaLightComponentController.cpp
index 7668477690..d67548c3e9 100644
--- a/Gems/AtomLyIntegration/CommonFeatures/Code/Source/CoreLights/AreaLightComponentController.cpp
+++ b/Gems/AtomLyIntegration/CommonFeatures/Code/Source/CoreLights/AreaLightComponentController.cpp
@@ -261,6 +261,11 @@ namespace AZ::Render
             m_lightShapeDelegate->SetPhotometricUnit(m_configuration.m_intensityMode);
             m_lightShapeDelegate->SetIntensity(m_configuration.m_intensity);
         }
+
+        if (m_configuration.m_attenuationRadiusMode == LightAttenuationRadiusMode::Automatic)
+        {
+            AttenuationRadiusChanged();
+        }
     }
 
     void AreaLightComponentController::ChromaChanged()