Disambiguate variant label

diff --git a/compiler/src/exe/tigert.ml b/compiler/src/exe/tigert.ml
index 10b5cbe..f5a5851 100644 (file)
--- a/compiler/src/exe/tigert.ml
+++ b/compiler/src/exe/tigert.ml
@@ -1,5 +1,5 @@
 let () =
   let dir = ref "testcases" in
-  Arg.parse [("-dir", String (fun s -> dir := s), "")] (fun _ -> ()) "";
+  Arg.parse [("-dir", Arg.String (fun s -> dir := s), "")] (fun _ -> ()) "";
   let dir = !dir in
   Tiger.Test.run (Tiger.Test_cases.all ~dir)