diff --git a/pycaret/internal/preprocess.py b/pycaret/internal/preprocess.py
index 35783882a..79e853fbc 100644
--- a/pycaret/internal/preprocess.py
+++ b/pycaret/internal/preprocess.py
@@ -2779,6 +2779,7 @@ class Remove_100(BaseEstimator, TransformerMixin):
 
     def __init__(self, target):
         self.target = target
+        self.columns_to_drop = []
 
     def fit(self, data, y=None):
         self.fit_transform(data, y=y)