diff --git a/pts/feature/time_feature.py b/pts/feature/time_feature.py
index 386fabf..f3b7793 100644
--- a/pts/feature/time_feature.py
+++ b/pts/feature/time_feature.py
@@ -118,6 +118,7 @@ class WeekOfYear(TimeFeature):
 
 
 class FourierDateFeatures(TimeFeature):
+    @validated()
     def __init__(self, freq: str) -> None:
         super().__init__()
         # reoccurring freq