diff --git a/tox.ini b/tox.ini
index 5b56c67..b62cc50 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,24 +1,26 @@
 [tox]
 envlist=check-manifest,flake8,py3
 
 [testenv:py3]
 deps =
   .[testing]
   pytest-cov
   https://github.com/ClearcodeHQ/pytest-elasticsearch/tarball/master#egg=pytest-elasticsearch
 commands =
-  pytest --cov=swh --cov-branch {posargs}
+  pytest --cov={envsitepackagesdir}/swh/search \
+         {envsitepackagesdir}/swh/search \
+         --cov-branch {posargs}
 
 [testenv:flake8]
 skip_install = true
 deps =
   flake8
 commands =
   {envpython} -m flake8
 
 [testenv:check-manifest]
 skip_install = true
 deps =
   check-manifest
 commands =
   {envpython} -m check_manifest {toxinidir}