diff --git a/serde_derive/src/dummy.rs b/serde_derive/src/dummy.rs
index 90a3514c..1c982824 100644
--- a/serde_derive/src/dummy.rs
+++ b/serde_derive/src/dummy.rs
@@ -29,6 +29,7 @@ pub fn wrap_in_const(
     };
 
     quote! {
+        #[doc(hidden)]
         #[allow(non_upper_case_globals, unused_attributes, unused_qualifications)]
         const #dummy_const: () = {
             #use_serde