diff --git a/vllm_shim_module.py b/vllm_shim_module.py
index 5d56af2..d61292e 100644
--- a/vllm_shim_module.py
+++ b/vllm_shim_module.py
@@ -69,7 +69,7 @@ ARG_MAP = {
 }
 
 # Default tool-call-parser; override with SGLANG_TOOL_CALL_PARSER env var
-DEFAULT_TOOL_CALL_PARSER = "mistral"
+DEFAULT_TOOL_CALL_PARSER = "qwen3_coder"
 
 
 def parse_vllm_args(args):