diff --git a/tox.ini b/tox.ini
index 5cb999bd58a..b359bb98743 100644
--- a/tox.ini
+++ b/tox.ini
@@ -147,13 +147,13 @@ deps =
 [testenv:integration-tests]
 basepython = python3
 commands = {envpython} -m pytest --log-cli-level=INFO {posargs:tests/integration_tests}
-passenv = CLOUD_INIT_*
+passenv = CLOUD_INIT_* SSH_AUTH_SOCK
 deps =
     -r{toxinidir}/integration-requirements.txt
 
 [testenv:integration-tests-ci]
 commands = {envpython} -m pytest --log-cli-level=INFO {posargs:tests/integration_tests}
-passenv = CLOUD_INIT_*
+passenv = CLOUD_INIT_* SSH_AUTH_SOCK
 deps =
     -r{toxinidir}/integration-requirements.txt
 setenv =