diff --git a/tests/test_spawner.py b/tests/test_spawner.py
index e649f55..acefef6 100644
--- a/tests/test_spawner.py
+++ b/tests/test_spawner.py
@@ -147,6 +147,9 @@ async def test_get_batch_script(db):
 
 set -euo pipefail
 
+export JUPYTERHUB_OAUTH_ACCESS_SCOPES=$(echo $JUPYTERHUB_OAUTH_ACCESS_SCOPES | base64 --decode)
+export JUPYTERHUB_OAUTH_SCOPES=$(echo $JUPYTERHUB_OAUTH_SCOPES | base64 --decode)
+
 trap 'echo SIGTERM received' TERM
 
 which jupyterhub-singleuser
@@ -191,6 +194,9 @@ async def test_get_batch_script_subvars(db):
 
 set -euo pipefail
 
+export JUPYTERHUB_OAUTH_ACCESS_SCOPES=$(echo $JUPYTERHUB_OAUTH_ACCESS_SCOPES | base64 --decode)
+export JUPYTERHUB_OAUTH_SCOPES=$(echo $JUPYTERHUB_OAUTH_SCOPES | base64 --decode)
+
 trap 'echo SIGTERM received' TERM
 
 which jupyterhub-singleuser