diff --git a/tests/test_daemon.sh b/tests/test_daemon.sh
index 40f35ef..1acddc0 100755
--- a/tests/test_daemon.sh
+++ b/tests/test_daemon.sh
@@ -18,7 +18,7 @@ function run_test {
 for module in local server
 do
 
-command="coverage run -p -a shadowsocks/$module.py"
+command="coverage run -a shadowsocks/$module.py"
 
 mkdir -p tmp