diff --git a/ansible/group_vars/all/idrac b/ansible/group_vars/all/idrac
index ab1689311..7410e553e 100644
--- a/ansible/group_vars/all/idrac
+++ b/ansible/group_vars/all/idrac
@@ -13,7 +13,7 @@ idrac_default_ip: 192.168.0.120
 
 # Dict mapping host description (as found in switch interface configuration) to
 # IP address of the iDRAC for that host.
-idrac_network_ips:
+idrac_network_ips: {}
 
 # Gateway IP address for iDRAC network.
 idrac_network_gateway: