diff --git a/tcl/drivers/lsc.tcl b/tcl/drivers/lsc.tcl
index 176ff80..e68183a 100644
--- a/tcl/drivers/lsc.tcl
+++ b/tcl/drivers/lsc.tcl
@@ -2950,7 +2950,9 @@ proc lsc::check_set {} {
   }
   if {[silent 0 sct internalset] eq "0"} {
     if {[silent 0 sct setmaintarget] ne "0"} {
-      eval "[sct setmaintarget] $target"
+      if {[catch {eval "[sct setmaintarget] $target"} msg]} {
+        clientlog "WARNING: $msg"
+      }
     }
   }
   if {$target == 0} {