--- a/classic-bugs/vol1/blocker/test1.cmd
+++ b/classic-bugs/vol1/blocker/test1.cmd
@@ -5,8 +5,8 @@
 parameters in blocker-init.R
 initialize
 update 3000
-monitor set d, thin(10)
-monitor set delta.new, thin(10)
-monitor set sigma, thin(10)
+monitor d, thin(10)
+monitor delta.new, thin(10)
+monitor sigma, thin(10)
 update 30000 
 coda *