diff --git a/capsulflask/shell_scripts/ip-dhcp-host.sh b/capsulflask/shell_scripts/ip-dhcp-host.sh
index 65f496e..31c11d7 100755
--- a/capsulflask/shell_scripts/ip-dhcp-host.sh
+++ b/capsulflask/shell_scripts/ip-dhcp-host.sh
@@ -15,7 +15,7 @@ ipv4_address="$4"
 # for some reason libvirt appears to remember every dhcp lease even after it has expired.
 # adding a new ip-dhcp-host will fail if there already is one with the same ip address. 
 # so we will try to delete any that already exist with that IP address just in case!
-if [ "$action" == 'add' ]; then
+if [ "$action" = 'add' ]; then
   printf "trying to delete any existing (probably expired) dhcp associations for $ipv4_address..."
   virsh net-update "$network_name" delete ip-dhcp-host "<host ip='$ipv4_address' />" --live --config || true
 fi