diff --git a/main.jl b/main.jl
index bab0761..d1cf783 100644
--- a/main.jl
+++ b/main.jl
@@ -27,7 +27,7 @@ function Settings(Gr::PropertyTGroup, args, solver)
     S = PropertyTGroups.generatingset(Gr)
 
     sol = solver
-    ub = get(args,"upper_bound", Inf)
+    ub = get(args,"upper-bound", Inf)
     tol = get(args,"tol", 1e-10)
     ws = get(args, "warmstart", false)