diff --git a/unsloth/models/rl.py b/unsloth/models/rl.py
index cf9c16514e..f13f7ef61b 100644
--- a/unsloth/models/rl.py
+++ b/unsloth/models/rl.py
@@ -536,7 +536,7 @@ def patch_functions(RLTrainer, trainer_file, RLTrainer_name, all_imports, import
     if "args.use_vllm" in init and "model" in init and "args" in init:
         # .*? matches first match. .+? matches final match.
         replacer = re.findall(
-            "def __init__\(.*?\).*?\:\n",
+            r"def __init__\(.*?\).*?\:\n",
             init,
             flags = re.MULTILINE | re.DOTALL,
         )
diff --git a/unsloth/tokenizer_utils.py b/unsloth/tokenizer_utils.py
index 91bb0202ff..26669127d7 100644
--- a/unsloth/tokenizer_utils.py
+++ b/unsloth/tokenizer_utils.py
@@ -945,7 +945,7 @@ def patch_sft_trainer_tokenizer():
         if replacer is None:
             # .*? matches first match. .+? matches final match.
             replacer = re.findall(
-                f"def {function_name}\(.*?\).*?\:\n",
+                f"def {function_name}" + r"\(.*?\).*?\:\n",
                 function,
                 flags = re.MULTILINE | re.DOTALL,
             )