diff --git a/src/base/snark0.ml b/src/base/snark0.ml
index b0ed161e9..841b60d9e 100644
--- a/src/base/snark0.ml
+++ b/src/base/snark0.ml
@@ -52,8 +52,6 @@ struct
     include As_prover
 
     type 'a as_prover = 'a t
-
-    module Ref = Ref
   end
 
   module Handle = struct