diff --git a/tokenize_args.lua b/tokenize_args.lua
index bb434e4..1a737bc 100644
--- a/tokenize_args.lua
+++ b/tokenize_args.lua
@@ -60,10 +60,11 @@ function dump(t)
 end
 
 function main()
-    local mockargs =
-    [[--name "tls_service_rs" --base-dir ${PWD%/*/*} --log-level "TRACE" -j '{ "MODE": "server", "CERT": "data/server.crt", "KEY": "data/server.key", "CHAIN": "data/root.crt", "ADDR": "127.0.0.1:9999", "HOSTNAME": "localhost" }']]
-    print(mockargs)
-    local split = tokenize_args(mockargs)
+    if arg[1] == nil then
+        print("need to give an argument (probably a string)")
+        return
+    end
+    local split = tokenize_args(arg[1])
     print(dump(split))
 end