diff --git a/scripts/finetune.py b/scripts/finetune.py
index 283100c8a..785f3cf23 100644
--- a/scripts/finetune.py
+++ b/scripts/finetune.py
@@ -63,7 +63,7 @@ def get_multi_line_input() -> Optional[str]:
     return instruction
 
 
-def do_inference(cfg, model, tokenizer, prompter="AlpacaPrompter"):
+def do_inference(cfg, model, tokenizer, prompter: Optional[str]):
     default_tokens = {"unk_token": "<unk>", "bos_token": "<s>", "eos_token": "</s>"}
 
     for token, symbol in default_tokens.items():
@@ -257,13 +257,13 @@ def train(
 
     if cfg.inference:
         logging.info("calling do_inference function")
-        inf_kwargs: Dict[str, Any] = {}
+        prompter: Optional[str] = "AlpacaPrompter"
         if "prompter" in kwargs:
             if kwargs["prompter"] == "None":
-                inf_kwargs["prompter"] = None
+                prompter = None
             else:
-                inf_kwargs["prompter"] = kwargs["prompter"]
-        do_inference(cfg, model, tokenizer, **inf_kwargs)
+                prompter = kwargs["prompter"]
+        do_inference(cfg, model, tokenizer, prompter=prompter)
         return
 
     if "shard" in kwargs: