diff --git a/src/client/generic_consumer.ml b/src/client/generic_consumer.ml
index adacca4c..d6eee7c1 100644
--- a/src/client/generic_consumer.ml
+++ b/src/client/generic_consumer.ml
@@ -35,7 +35,6 @@ module Make
       queue of signals, and start a consumer to process these signals and send
       them somewhere using HTTP. *)
 end = struct
-  module Proto = Opentelemetry_proto
   open IO
 
   type config = {
diff --git a/src/client/generic_http_consumer.ml b/src/client/generic_http_consumer.ml
index 7b502a07..9c8ef396 100644
--- a/src/client/generic_http_consumer.ml
+++ b/src/client/generic_http_consumer.ml
@@ -41,9 +41,6 @@ module Make
         controls whether we start a task to call [tick] at the given interval in
         seconds, or [None] to not start such a task at all. *)
 end = struct
-  module Proto = Opentelemetry_proto
-  open IO
-
   module Sender :
     Generic_consumer.SENDER
       with module IO = IO