--- a/classic-bugs/vol1/rats/test1.cmd
+++ b/classic-bugs/vol1/rats/test1.cmd
@@ -4,7 +4,7 @@
 inits in "rats-init.R"
 initialize
 update 1000 
-monitor set alpha0 
-monitor set beta.c 
+monitor alpha0 
+monitor beta.c 
 update 10000
 coda *