diff --git a/tests/bin/emit1.ml b/tests/bin/emit1.ml
index 0d791436..c7adf5f6 100644
--- a/tests/bin/emit1.ml
+++ b/tests/bin/emit1.ml
@@ -8,17 +8,7 @@ let sleep_outer = ref 2.0
 
 let run () =
   Printf.printf "collector is on %S\n%!" (Opentelemetry_client_ocurl.get_url());
-
-  (* regularly emit some metrics *)
-  let emit_gc() =
-    let gc = Gc.stat() in
-    T.Metrics.(
-      emit [
-        gauge ~name:"ocaml_opentracing.test.major_heap_words" [int gc.Gc.heap_words];
-        sum ~name:"ocaml_opentracing.test.minor_allocated" [float gc.Gc.minor_words];
-      ]);
-  in
-  let _al = Gc.create_alarm emit_gc in
+  T.GC_metrics.basic_setup();
 
   let i = ref 0 in
   while true do