diff --git a/tests/test_worker.py b/tests/test_worker.py
index 73838f68..2c1a0123 100644
--- a/tests/test_worker.py
+++ b/tests/test_worker.py
@@ -11,7 +11,7 @@ import pytest
 def gunicorn_worker():
     command = 'gunicorn --bind 127.0.0.1:1337 --worker-class sanic.worker.GunicornWorker examples.simple_server:app'
     worker = subprocess.Popen(shlex.split(command))
-    time.sleep(1)
+    time.sleep(3)
     yield
     worker.kill()
 
diff --git a/tox.ini b/tox.ini
index 3092e875..de1dc2d5 100644
--- a/tox.ini
+++ b/tox.ini
@@ -9,16 +9,14 @@ setenv =
 deps =
     coverage
     pytest
+    pytest-cov
     pytest-sugar
     aiohttp==1.3.5
     chardet<=2.3.0
     beautifulsoup4
     gunicorn
 commands =
-    pytest tests {posargs}
-    coverage erase
-    coverage run -m sanic.app
-    coverage report
+    pytest tests --cov sanic --cov-report term-missing {posargs}
 
 [testenv:flake8]
 deps =