diff --git a/simSequences.py b/simSequences.py
index 053b5d3..bf3cca1 100644
--- a/simSequences.py
+++ b/simSequences.py
@@ -170,6 +170,5 @@ def readnewick(tree):
     preorder = readnewick(yuletree)
     ntax = 10
     num_sites = 10000
-    
     result = simulate(preorder, ntax, num_sites, output_filename)