diff --git a/tests/run_tests b/tests/run_tests
index 7b2be4e..87d43fa 100755
--- a/tests/run_tests
+++ b/tests/run_tests
@@ -19,7 +19,7 @@ if ! [ -e /root/.ssh/id_rsa ]; then
 fi
 
 
-coverage run --source zfs_autobackup -m unittest discover -vvvvf $SCRIPTDIR $@ 2>&1
+coverage run --branch --source zfs_autobackup -m unittest discover -vvvvf $SCRIPTDIR $@ 2>&1
 EXIT=$?
 
 echo