diff --git a/example/Vulkan/second_triangle.cpp b/example/Vulkan/second_triangle.cpp
index f1c19132..286b94ea 100644
--- a/example/Vulkan/second_triangle.cpp
+++ b/example/Vulkan/second_triangle.cpp
@@ -45,7 +45,7 @@ private:
 
     bool InitMaterial()
     {
-        mtl::Material2DCreateConfig cfg("VertexColor2D");
+        mtl::Material2DCreateConfig cfg(device->GetDeviceAttribute(),"VertexColor2D");
 
 #ifdef USE_ZERO2ONE_COORD
         cfg.coordinate_system=CoordinateSystem2D::ZeroToOne;
diff --git a/example/Vulkan/third_triangle.cpp b/example/Vulkan/third_triangle.cpp
index 4cbdbfd3..a1ac45c7 100644
--- a/example/Vulkan/third_triangle.cpp
+++ b/example/Vulkan/third_triangle.cpp
@@ -46,7 +46,7 @@ private:
     bool InitMaterial()
     {
         {
-            mtl::Material2DCreateConfig cfg("VertexColor2D");
+            mtl::Material2DCreateConfig cfg(device->GetDeviceAttribute(),"VertexColor2D");
 
             cfg.coordinate_system=CoordinateSystem2D::NDC;
             cfg.local_to_world=true;