diff --git a/src/spey/base/model_config.py b/src/spey/base/model_config.py
index e178abb..f8b261b 100644
--- a/src/spey/base/model_config.py
+++ b/src/spey/base/model_config.py
@@ -88,7 +88,7 @@ def fixed_poi_bounds(
     def rescale_poi_bounds(
         self, allow_negative_signal: bool = True, poi_upper_bound: Optional[float] = None
     ) -> List[Tuple[float, float]]:
-        """
+        r"""
         Rescale bounds for POI.
 
         Args: