diff --git a/jenkins/jobs/devstack-gate.yaml b/jenkins/jobs/devstack-gate.yaml
index 0229bc47ae..2bc7a3291a 100644
--- a/jenkins/jobs/devstack-gate.yaml
+++ b/jenkins/jobs/devstack-gate.yaml
@@ -556,7 +556,7 @@
       - devstack-checkout
       - shell: |
           #!/bin/bash -xe
-          export USE_PYTHON3=True
+          export DEVSTACK_GATE_USE_PYTHON3=True
           export PYTHONUNBUFFERED=true
           export DEVSTACK_GATE_HEAT=1
           export DEVSTACK_GATE_SAHARA=1
diff --git a/jenkins/jobs/keystone.yaml b/jenkins/jobs/keystone.yaml
index 5c5aa4183a..662aa2770e 100644
--- a/jenkins/jobs/keystone.yaml
+++ b/jenkins/jobs/keystone.yaml
@@ -80,7 +80,7 @@
       - devstack-checkout
       - shell: |
           #!/bin/bash -xe
-          export USE_PYTHON3=True
+          export DEVSTACK_GATE_USE_PYTHON3=True
           export PYTHONUNBUFFERED=true
           export DEVSTACK_GATE_TEMPEST=1