diff --git a/src/tox.ini b/src/tox.ini
index bf194de..c3a54a7 100644
--- a/src/tox.ini
+++ b/src/tox.ini
@@ -7,7 +7,7 @@ setenv = VIRTUAL_ENV={envdir}
          PYTHONHASHSEED=0
 whitelist_externals = juju
 passenv =
-    HOME TERM CS_API_* FIP_RANGE AMULET_* MOJO_* NET_ID GATEWAY NAME_SERVER
+    HOME TERM CS_* FIP_RANGE AMULET_* MOJO_* NET_ID GATEWAY NAME_SERVER
     CIDR_EXT FIP_RANGE VIP_RANGE
 deps = -r{toxinidir}/test-requirements.txt
 install_command =