diff --git a/Source/Engine/GraphicsDevice/WebGPU/GPUBufferWebGPU.cpp b/Source/Engine/GraphicsDevice/WebGPU/GPUBufferWebGPU.cpp
index 8d0a7c643..5e1bd8359 100644
--- a/Source/Engine/GraphicsDevice/WebGPU/GPUBufferWebGPU.cpp
+++ b/Source/Engine/GraphicsDevice/WebGPU/GPUBufferWebGPU.cpp
@@ -109,7 +109,7 @@ bool GPUBufferWebGPU::OnInit()
     }
     else if (_desc.InitData)
     {
-        wgpuQueueWriteBuffer(_device->Queue, Buffer, 0, _desc.InitData, _desc.Size);
+        wgpuQueueWriteBuffer(_device->Queue, Buffer, 0, _desc.InitData, bufferDesc.size);
     }
 
     // Create view