diff --git a/host_vars/imperator b/host_vars/imperator
index 48ae6bd00..840990764 100644
--- a/host_vars/imperator
+++ b/host_vars/imperator
@@ -2,3 +2,15 @@
 mailhub: 172.23.34.34
 rewrite_domain: imperator.hpc.rug.nl
 motd: Vare, Vare, redde legiones!
+additional_etc_hosts: |
+  172.23.40.21       gs-compute01        gs-compute01.hpc.local
+  172.23.40.22       gs-compute02        gs-compute02.hpc.local
+  172.23.40.23       gs-compute03        gs-compute03.hpc.local
+  172.23.40.24       gs-compute04        gs-compute04.hpc.local
+  172.23.40.25       gs-compute05        gs-compute05.hpc.local
+  172.23.40.26       gs-compute06        gs-compute06.hpc.local
+  172.23.40.27       gs-compute07        gs-compute07.hpc.local
+  172.23.40.28       gs-compute08        gs-compute08.hpc.local
+  172.23.40.29       gs-compute09        gs-compute09.hpc.local
+  172.23.40.30       gs-compute10        gs-compute10.hpc.local
+  172.23.40.31       gs-compute11        gs-compute11.hpc.local
diff --git a/roles/cluster/templates/gearshift_hosts b/roles/cluster/templates/gearshift_hosts
index 733248fd4..c6f25a089 100644
--- a/roles/cluster/templates/gearshift_hosts
+++ b/roles/cluster/templates/gearshift_hosts
@@ -77,3 +77,7 @@
 195.169.22.247          calculon.gcc.rug.nl
 195.169.22.95           leucine-zipper.gcc.rug.nl
 195.169.22.8            zinc-finger.gcc.rug.nl
+
+{% if additional_etc_hosts is defined %}
+{{ additional_etc_hosts }}
+{% endif %}