diff --git a/tcl/startup/ccu4make.tcl b/tcl/startup/ccu4make.tcl
index 6f44be1..0d0082c 100644
--- a/tcl/startup/ccu4make.tcl
+++ b/tcl/startup/ccu4make.tcl
@@ -81,6 +81,8 @@ proc makeCCU4 {args} {
           helium_register _cc /cc/h0 vessel
           if {$vessel ne "0"} {
             catch {cc hea 1}
+            catch {cc hem0 475}
+            catch {cc hfu0 0}
           }
         }
         helium_register _cc /cc/h