diff --git a/SL.jl b/SL.jl
index 17e14e9..76aabc3 100644
--- a/SL.jl
+++ b/SL.jl
@@ -153,7 +153,7 @@ function main()
     end
     radius = parsed_args["radius"]
     if radius == 0
-        name*"-$(string(upper_bound))"
+        name = name*"-$(string(upper_bound))"
         radius = 2
     else
         name = name*"-$(string(upper_bound))-r=$radius"