diff --git a/onnxruntime/python/tools/quantization/quantize.py b/onnxruntime/python/tools/quantization/quantize.py
index c7d190e8ea..0ab33442d2 100644
--- a/onnxruntime/python/tools/quantization/quantize.py
+++ b/onnxruntime/python/tools/quantization/quantize.py
@@ -48,7 +48,7 @@ def load_model(model_path: Path, optimize=True):
         onnx_model.replace_gemm_with_matmul()
         return onnx_model.model
 
-    return onnx.load(Path)
+    return onnx.load(Path(model_path))
 
 
 def quantize(model,