diff --git a/demo/kaggle-higgs/speedtest.py b/demo/kaggle-higgs/speedtest.py
index 92d745302..c5cc2fd29 100755
--- a/demo/kaggle-higgs/speedtest.py
+++ b/demo/kaggle-higgs/speedtest.py
@@ -50,8 +50,8 @@ num_round = 10
 print ('loading data end, start to boost trees')
 print ("training GBM from sklearn")
 tmp = time.time()
-#gbm = GradientBoostingClassifier(n_estimators=num_round, max_depth=6, verbose=2)
-#gbm.fit(data, label)
+gbm = GradientBoostingClassifier(n_estimators=num_round, max_depth=6, verbose=2)
+gbm.fit(data, label)
 print ("sklearn.GBM costs: %s seconds" % str(time.time() - tmp))
 #raw_input()
 print ("training xgboost")