diff --git a/lib/teleplug/instrumentation.ex b/lib/teleplug/instrumentation.ex
index 848a4c2..1bf1ed5 100644
--- a/lib/teleplug/instrumentation.ex
+++ b/lib/teleplug/instrumentation.ex
@@ -17,6 +17,8 @@ defmodule Teleplug.Instrumentation do
   ]
 
   def setup do
+    OpenTelemetry.register_application_tracer(:teleplug)
+
     # attach to plug and phoenix route dispatch events so it works when using one or the other
     Enum.each(@start_events, fn event -> attach_to_event(event, &__MODULE__.register_route/4) end)
     Enum.each(@end_events, fn event -> attach_to_event(event, &__MODULE__.unregister_route/4) end)