diff --git a/skolo/ansible/hosts.yml b/skolo/ansible/hosts.yml
index 43ad705..eda27f2 100644
--- a/skolo/ansible/hosts.yml
+++ b/skolo/ansible/hosts.yml
@@ -91,7 +91,6 @@
     rack4_switchboard_rpis:
       hosts:
         skia-rpi2-rack4-shelf1-[001:020]:
-        skia-rpi2-rack4-shelf1-[025:040]:
         skia-rpi2-rack4-shelf2-[001:026]:
         skia-rpi2-rack4-shelf3-[001:020]:
         skia-rpi2-rack4-shelf4-[001:003]:
@@ -105,6 +104,7 @@
     rack1_switchboard_rpis:
       hosts:
         skia-rpi2-rack1-shelf1-[001:040]:
+        skia-rpi2-rack1-shelf6-[001:016]:
       vars:
         swarming_needs__needs_mobile_tools: true
         install_test_machine_monitor__start_swarming: true