@@ -36,10 +36,12 @@
 WACKYVAR4 #{scheme (+ 5 6 7)}
 WACKYVAR5 #{getenv sysname}/#{getenv fsname}/#{getenv datapath}
 WACKYVAR6 #{scheme (args:get-arg "-target")}
 PREDICTABLE the_ans
 MRAH MT_RUN_AREA_HOME=#{getenv MT_RUN_AREA_HOME}
+# The empty var should have a definition with null string
+EMPTY_VAR
 
 # XTERM   [system xterm]
 # RUNDEAD [system exit 56]
 
 ## disks are: