diff --git a/scripts/common.py b/scripts/common.py
index 8af2ad66aedd87d2d079b902adf538b8283a37b9..6e34d69e0a60422824a730492a4402708ae06591 100644
--- a/scripts/common.py
+++ b/scripts/common.py
@@ -624,6 +624,9 @@ def get_number_of_columns(filename, ks=range(2, 10)):
         right_boundaries.append(right_boundary)
 
     boundaries = left_boundaries + right_boundaries
+    num_unique_boundaries = len(set(boundaries))
+    if num_unique_boundaries <= ks.start:
+        return num_unique_boundaries
     are_outliers = OneClassSVM().fit_predict(np.array(boundaries).reshape(-1, 1))
     boundaries = [
         boundary
@@ -632,6 +635,8 @@ def get_number_of_columns(filename, ks=range(2, 10)):
         if is_outlier == 1
     ]
     num_unique_boundaries = len(set(boundaries))
+    if num_unique_boundaries <= ks.start:
+        return num_unique_boundaries
     X = np.array(boundaries).reshape(-1, 1)
     best_k, best_silhouette = 1, float('-inf')
     for k in ks: