diff --git a/scripts/jetson/generate_int8_cache.py b/scripts/jetson/generate_int8_cache.py
index 7d6d3d5..622df9e 100644
--- a/scripts/jetson/generate_int8_cache.py
+++ b/scripts/jetson/generate_int8_cache.py
@@ -98,6 +98,13 @@ def main():
             print(f"Cache written → {args.output}")
 
     onnx_data = Path(args.onnx).read_bytes()
+    try:
+        from engines.onnx_tensorrt_compat import prepare_for_tensorrt
+
+        onnx_data = prepare_for_tensorrt(onnx_data)
+        print("Prepared ONNX model for TensorRT static Jetson build")
+    except Exception as e:
+        print(f"WARNING: ONNX TensorRT compatibility preparation failed: {e}", file=sys.stderr)
     logger = trt.Logger(trt.Logger.INFO)
     explicit_batch = 1 << int(trt.NetworkDefinitionCreationFlag.EXPLICIT_BATCH)