diff --git a/volia/clustering.py b/volia/clustering.py
index 9d8e5c9..af8aefc 100644
--- a/volia/clustering.py
+++ b/volia/clustering.py
@@ -98,7 +98,7 @@ def kmeans_run(features: str,
         if mahalanobis:
             if debug:
                 print("Mahalanobis activated")
-            model = CLUSTERING_METHODS["k-means-mahalanobis"]
+            model = CLUSTERING_METHODS["k-means-mahalanobis-constrained"]
         model.fit(X, k, tol, ninit, maxiter, debug)
         model.save(output_file)
         json_content["models"].append({