diff --git a/src/ocaml-index/tests/tests-dirs/interfaces.t b/src/ocaml-index/tests/tests-dirs/interfaces.t
index 2232ed41b6..7514c55cf2 100644
--- a/src/ocaml-index/tests/tests-dirs/interfaces.t
+++ b/src/ocaml-index/tests/tests-dirs/interfaces.t
@@ -17,7 +17,8 @@
   $ ocaml-index aggregate main.cmti -o main.index
 
   $ ocaml-index dump main.index
-  1 uids:
-  {uid: Stdlib__Float.81; locs:
+  2 uids:
+  {uid: [intf]Main.0; locs: "t": File "main.mli", line 1, characters 5-6
+   uid: Stdlib__Float.81; locs:
      "Float.t": File "main.mli", line 1, characters 9-16
    }, 0 approx shapes: {}, and shapes for CUS .