diff --git a/src/seer/anomaly_detection/detectors/mp_utils.py b/src/seer/anomaly_detection/detectors/mp_utils.py
index bf84f34d..5dfe2571 100644
--- a/src/seer/anomaly_detection/detectors/mp_utils.py
+++ b/src/seer/anomaly_detection/detectors/mp_utils.py
@@ -42,6 +42,10 @@ def get_mp_dist_from_mp(
             mp_dist = normalizer.normalize(mp_dist)
 
         if pad_to_len is not None:
+            if pad_to_len < len(mp_dist):
+                raise Exception(
+                    "Requested length should be greater than or equal to current mp_dist"
+                )
             nan_value_count = np.empty(pad_to_len - len(mp_dist))
             nan_value_count.fill(np.nan)
             mp_dist_updated = np.concatenate((nan_value_count, mp_dist))