diff --git a/ihd/run_ihd_scan.py b/ihd/run_ihd_scan.py
index ff9597a..191e9c4 100644
--- a/ihd/run_ihd_scan.py
+++ b/ihd/run_ihd_scan.py
@@ -31,7 +31,7 @@ def filter_mutation_data(
 
     if len(samples_overlap) == 0:
         print(
-            """Sorry, no samples in common between mutation data 
+            """Sorry, no samples in common between mutation data
         and genotype matrix. Please ensure sample names are identical."""
         )
         sys.exit()