diff --git a/src/turnkeyml/analyze/model.py b/src/turnkeyml/analyze/model.py
index 671efc82..5590f9ca 100644
--- a/src/turnkeyml/analyze/model.py
+++ b/src/turnkeyml/analyze/model.py
@@ -25,7 +25,7 @@ def count_parameters(model: torch.nn.Module, model_type: build.ModelType) -> int
         onnx_model = onnx.load(model)
         return int(
             sum(
-                np.prod(tensor.dims)
+                np.prod(tensor.dims, dtype=np.int64)
                 for tensor in onnx_model.graph.initializer
                 if tensor.name not in onnx_model.graph.input
             )