diff --git a/unsloth/dataprep/synthetic.py b/unsloth/dataprep/synthetic.py
index ad03bc5523..9f8204b5f0 100644
--- a/unsloth/dataprep/synthetic.py
+++ b/unsloth/dataprep/synthetic.py
@@ -64,6 +64,7 @@ def async_load_vllm(
     )
     if "device" in engine_args: del engine_args["device"]
     if "model"  in engine_args: del engine_args["model"]
+    if "compilation_config" in engine_args: del engine_args["compilation_config"]
 
     subprocess_commands = [
         "vllm", "serve", str(model_name),