Index: mtut.scm
==================================================================
--- mtut.scm
+++ mtut.scm
@@ -1008,11 +1008,11 @@
                          (for-each 
                            (lambda (area) 
 ;Add code to check whether area is valid
 			     (if 
                    ;; This code checks whether the target has been passed in via argument, and only runs the specified target
-                   (and (< packets-generated (or (configf:lookup mtconf "setup" "max_packets_per_run") 10000))  (if (args:get-arg "-target") 
+                   (and (< packets-generated (or (string->number (configf:lookup mtconf "setup" "max_packets_per_run")) 10000))  (if (args:get-arg "-target") 
                      (if (string= (args:get-arg "-target") runkey) (area-allowed? area "area-needs-to-be-run" runkey contour #f) #f) 
                      (area-allowed? area "area-needs-to-be-run" runkey contour #f)))
        
 			     (let* ((script (car cmd))
 				(params (cdr cmd))