diff --git a/tcl/fs.config b/tcl/fs.config
index 4153944..2a6fa96 100644
--- a/tcl/fs.config
+++ b/tcl/fs.config
@@ -15,3 +15,6 @@ catch {
   tt set/integ 5
   tt set/limit 800
 }
+
+# this might be needed for SICS, when tm should be recorded in the data file
+# makenv i1 -driver drvpar /tt/tm