diff --git a/cmds/st.cmd b/cmds/st.cmd
index 12483d47bbf22f317b6295d81aed120557f756dc..c1655a0d1fdc812282d2be9f0832db7f131e1a05 100644
--- a/cmds/st.cmd
+++ b/cmds/st.cmd
@@ -11,7 +11,7 @@ drvAsynIPPortConfigure("L0", "$(IPADDR):$(IPPORT) UDP", 0, 0, 1)
 #asynSetTraceIOMask( L0, -1, 0x4)
 #asynSetTraceInfoMask ( L0, -1, 0x9)
 
-RMMConfig("RMM", "L0", "/home/marcofilho/fe-vmm-tbl/cmds/config_file/lab_testbed.json", 0)
+RMMConfig("RMM", "L0", "$(IOCSH_TOP)/config_file/lab_testbed.json", 0)
 
 #VMMTblConfig("portName", ring, number_hybrids)
 VMMTblConfig("RMM", 0, 2)