diff --git a/tests.sh b/tests.sh
index 010a885..ae073fe 100755
--- a/tests.sh
+++ b/tests.sh
@@ -5,6 +5,6 @@
 # stop on first error
 set -ev
 
-pycodestyle catcli/
+pycodestyle --ignore=W605 catcli/
 pycodestyle tests/
 PYTHONPATH=catcli python3 -m nose -s --with-coverage --cover-package=catcli