diff --git a/tcl/mb11.config b/tcl/mb11.config
index bef6fac..9478384 100644
--- a/tcl/mb11.config
+++ b/tcl/mb11.config
@@ -1,4 +1,4 @@
-deviceDesc = FRAPPY history recorder, with stick
+deviceDesc = MB11 Frappy history recorder
 
 set ::secop_version 4
 
@@ -11,6 +11,5 @@ if {[string match "prep*" $ins]} {
   error "runs on instruments or prep0-9 only"
 } else {
   makenv frappy_main -driver secop -port localhost:15101
-  makenv frappy_stick -driver secop -port localhost:15201
   makeHePump
 }
diff --git a/tcl/mb11.stick b/tcl/mb11.stick
new file mode 100644
index 0000000..613f28f
--- /dev/null
+++ b/tcl/mb11.stick
@@ -0,0 +1,13 @@
+deviceDesc = MB11 stick Frappy history recorder
+
+set ::secop_version 4
+
+set ins [result instrument]
+if {[string match "prep*" $ins]} {
+  set nr [string range $ins end end]
+  makenv frappy_stick -driver secop -port localhost:1521$nr
+} elseif {[lindex [split [info hostname] .] 0] ne $ins} {
+  error "runs on instruments or prep0-9 only"
+} else {
+  makenv frappy_stick -driver secop -port localhost:15201
+}