diff --git a/build/build.tcl b/build/build.tcl
index 7bfc5ab0..ecefc2d4 100644
--- a/build/build.tcl
+++ b/build/build.tcl
@@ -1310,7 +1310,7 @@ expect ":KILL"
 # UP
 respond "*" ":midas sys1;ts up_sysen1;up\r"
 expect ":KILL"
-respond "*" ":link sys1;ts down, sys1;ts dup\r"
+respond "*" ":link sys1;ts down, sys1;ts up\r"
 
 # UPTIME
 respond "*" ":midas sysbin;uptime bin_sysen1;uptime\r"