diff --git a/python-package/xgboost/sklearn.py b/python-package/xgboost/sklearn.py
index ae4751ea7..b80a79fcf 100644
--- a/python-package/xgboost/sklearn.py
+++ b/python-package/xgboost/sklearn.py
@@ -536,7 +536,7 @@ class XGBModel(XGBModelBase):
         feature_importances_ : array of shape ``[n_features]``
 
         """
-        if getattr(self, 'booster', None) is not None and self.booster != 'gbtree':
+        if getattr(self, 'booster', None) is not None and self.booster not in {'gbtree', 'dart'}:
             raise AttributeError('Feature importance is not defined for Booster type {}'
                                  .format(self.booster))
         b = self.get_booster()