diff --git a/python/triqs_dft_tools/sumk_dft.py b/python/triqs_dft_tools/sumk_dft.py
index 676ad395..79933ba1 100644
--- a/python/triqs_dft_tools/sumk_dft.py
+++ b/python/triqs_dft_tools/sumk_dft.py
@@ -36,7 +36,7 @@ from .block_structure import BlockStructure
 from .util import compute_DC_from_density
 from itertools import product
 from warnings import warn
-from scipy import compress
+from numpy import compress
 from scipy.optimize import minimize, newton, brenth