diff --git a/zuul/site-variables.yaml b/zuul/site-variables.yaml
index 2ba47adbd2..9c5dc39dfe 100644
--- a/zuul/site-variables.yaml
+++ b/zuul/site-variables.yaml
@@ -4,7 +4,7 @@
 # new opendev.org based mirrors, but then eventually be removed once
 # all are updated.
 zuul_site_mirror_fqdn: >-
-  {%- if nodepool.region + "." + nodepool.cloud in [ "DFW.rax", "ORD.rax", "us-east.openedge", "BHS1.ovh", "GRA1.ovh", "mtl01.inap", "RegionOne.linaro-us", "Kna1.airship-citycloud" ] -%}
+  {%- if nodepool.region + "." + nodepool.cloud in [ "DFW.rax", "IAD.rax", "ORD.rax", "us-east.openedge", "BHS1.ovh", "GRA1.ovh", "mtl01.inap", "RegionOne.linaro-us", "Kna1.airship-citycloud" ] -%}
   mirror.{{ nodepool.region | lower }}.{{ nodepool.cloud | lower }}.opendev.org
   {%- else -%}
   mirror.{{ nodepool.region | lower }}.{{ nodepool.cloud | lower }}.openstack.org