diff --git a/sslearn/model_selection/_split.py b/sslearn/model_selection/_split.py
index 0e5cd26..731caa2 100644
--- a/sslearn/model_selection/_split.py
+++ b/sslearn/model_selection/_split.py
@@ -138,6 +138,8 @@ def artificial_ssl_dataset(X, y, label_rate=0.1, random_state=None, force_minimu
     if force_minimum is not None:
         label = np.concatenate((selected, label))
     
+    y_unlabel_original = y[unlabel]
+
     # Create the label and unlabel sets
     X_label, y_label, X_unlabel, y_unlabel = X[label], y[label],\
         X[unlabel], np.array([-1] * len(unlabel))
@@ -151,9 +153,9 @@ def artificial_ssl_dataset(X, y, label_rate=0.1, random_state=None, force_minimu
         y = pd.Series(y)
 
     if indexes:
-        return X, y, X_unlabel, y_unlabel, label, unlabel
+        return X, y, X_unlabel, y_unlabel_original, label, unlabel
 
-    return X, y, X_unlabel, y_unlabel
+    return X, y, X_unlabel, y_unlabel_original
 
 
     """