diff --git a/jenkins.sh b/jenkins.sh
index 8add751..ce3419b 100755
--- a/jenkins.sh
+++ b/jenkins.sh
@@ -4,7 +4,7 @@ set -e # prevent hiding of errors
 
 rm -f *coverage.xml
 rm -f *test_results.xml
-rm -f htmlcov htmlcov-*
+rm -rf htmlcov htmlcov-*
 
 virtualenv venv
 venv/bin/pip install --upgrade setuptools