diff --git a/tox.ini b/tox.ini
index 57d18cdb641..52849557b5f 100644
--- a/tox.ini
+++ b/tox.ini
@@ -122,7 +122,7 @@ deps =
 commands = {envpython} -m pytest --log-cli-level=INFO {posargs:tests/integration_tests}
 deps =
     -r{toxinidir}/integration-requirements.txt
-passenv = CLOUD_INIT_* SSH_AUTH_SOCK OS_*
+passenv = CLOUD_INIT_* PYCLOUDLIB_* SSH_AUTH_SOCK OS_*
 
 [testenv:integration-tests-ci]
 commands = {[testenv:integration-tests]commands}
@@ -134,7 +134,7 @@ setenv =
 [testenv:integration-tests-jenkins]
 commands = {[testenv:integration-tests]commands}
 deps = {[testenv:integration-tests]deps}
-passenv = *_proxy CLOUD_INIT_* SSH_AUTH_SOCK OS_* GOOGLE_* GCP_*
+passenv = *_proxy CLOUD_INIT_* PYCLOUDLIB_* SSH_AUTH_SOCK OS_* GOOGLE_* GCP_*
 setenv =
     PYTEST_ADDOPTS="-m not adhoc"