diff --git a/cara/monte_carlo/data.py b/cara/monte_carlo/data.py
index 4e8c9206..e4c99552 100644
--- a/cara/monte_carlo/data.py
+++ b/cara/monte_carlo/data.py
@@ -7,6 +7,7 @@ from scipy import special as sp
 import cara.monte_carlo as mc
 from cara.monte_carlo.sampleable import Normal,LogNormal,LogCustomKernel,CustomKernel,Uniform
 
+
 sqrt2pi = np.sqrt(2.*np.pi)
 sqrt2 = np.sqrt(2.)