diff --git a/startup.script_linux b/startup.script_linux
index 4262426..4a32fc1 100644
--- a/startup.script_linux
+++ b/startup.script_linux
@@ -30,8 +30,8 @@ ifEnvSet $(IP_ADDR) ~129.129.131.* EPICS_CA_ADDR_LIST "129.129.130.255 129.129.1
 ifEnvSet $(IP_ADDR) ~129.129.137.* EPICS_CA_ADDR_LIST "129.129.130.255 129.129.131.255"
 
 # SLS machine network
-ifEnvSet IP_ADDR, "~172.22.*", "EPICS_CA_ADDR_LIST", "172.22.4.255 172.22.5.255 172.22.6.255 172.22.7.255 172.22.120.255 172.22.121.255"
-ifEnvSet IP_ADDR, "~172.22.*", "EPICS_CA_AUTO_ADDR_LIST", "NO"
+ifEnvSet $(IP_ADDR) ~172.22.* EPICS_CA_ADDR_LIST "172.22.4.255 172.22.5.255 172.22.6.255 172.22.7.255 172.22.120.255 172.22.121.255"
+ifEnvSet $(IP_ADDR) ~172.22.* EPICS_CA_AUTO_ADDR_LIST NO
 
 # SwissFEL machine networks
 # with directed broadcasts