diff --git a/explorer/src/api/graphql/certificates.rs b/explorer/src/api/graphql/certificates.rs
index 7c50fcc8d8..c9deecd29b 100644
--- a/explorer/src/api/graphql/certificates.rs
+++ b/explorer/src/api/graphql/certificates.rs
@@ -8,7 +8,6 @@ use super::{Address, BlockDate, ExplorerAddress, Pool, Proposal, TaxType};
 
 // interface for grouping certificates as a graphl union
 #[derive(Union)]
-#[graphql(Context = Context)]
 pub enum Certificate {
     StakeDelegation(StakeDelegation),
     OwnerStakeDelegation(OwnerStakeDelegation),