diff --git a/Gems/Terrain/Code/Source/Components/TerrainPhysicsColliderComponent.cpp b/Gems/Terrain/Code/Source/Components/TerrainPhysicsColliderComponent.cpp
index 916dd800e2..c51728a5c3 100644
--- a/Gems/Terrain/Code/Source/Components/TerrainPhysicsColliderComponent.cpp
+++ b/Gems/Terrain/Code/Source/Components/TerrainPhysicsColliderComponent.cpp
@@ -53,7 +53,7 @@ namespace Terrain
 
     AZ::Data::AssetId TerrainPhysicsSurfaceMaterialMapping::GetMaterialLibraryId()
     {
-        if (auto* physicsSystem = AZ::Interface<AzPhysics::SystemInterface>::Get())
+        if (const auto* physicsSystem = AZ::Interface<AzPhysics::SystemInterface>::Get())
         {
             if (const auto* physicsConfiguration = physicsSystem->GetConfiguration())
             {
diff --git a/Gems/Terrain/Code/Source/Components/TerrainPhysicsColliderComponent.h b/Gems/Terrain/Code/Source/Components/TerrainPhysicsColliderComponent.h
index 284bc74d88..8a70f282d0 100644
--- a/Gems/Terrain/Code/Source/Components/TerrainPhysicsColliderComponent.h
+++ b/Gems/Terrain/Code/Source/Components/TerrainPhysicsColliderComponent.h
@@ -33,10 +33,12 @@ namespace Terrain
         AZ_CLASS_ALLOCATOR(TerrainPhysicsSurfaceMaterialMapping, AZ::SystemAllocator, 0);
         AZ_RTTI(TerrainPhysicsSurfaceMaterialMapping, "{A88B5289-DFCD-4564-8395-E2177DFE5B18}");
         static void Reflect(AZ::ReflectContext* context);
-        static AZ::Data::AssetId GetMaterialLibraryId();
 
         SurfaceData::SurfaceTag m_surfaceTag;
         Physics::MaterialId m_materialId;
+
+    private:
+        static AZ::Data::AssetId GetMaterialLibraryId();
     };
 
     class TerrainPhysicsColliderConfig